Electric Blue Crayfish Care: Tank Setup, Diet, Tank Mates, Diseases & More!

If you’re looking for an eye-catching and low-maintenance addition to your aquarium, an electric blue crayfish might be just what you need! These stunning crustaceans are a bright blue color and have a unique personality that can add a lot of character to your tank. However, before bringing one home, it’s important to understand their care requirements to ensure they stay healthy and happy.

Electric Blue Crayfish is a freshwater crustacean species that requires a minimum tank size of 20 gallons. They prefer a pH range of 7.0-8.0 and moderately hard water. They are omnivorous and should be fed a varied diet of algae, biofilm, and prepared foods. Regular water changes and proper filtration are necessary for their well-being.

First and foremost, electric blue crayfish need a spacious tank with plenty of hiding places and places to explore. They can be territorial, so it’s important to provide each crayfish with enough space to claim their own territory. Additionally, they require clean water with a neutral pH and a temperature between 72-82°F. A good filtration system is also a must to keep the water quality high.

When it comes to feeding, electric blue crayfish are omnivores and will eat a variety of foods. You can offer them sinking pellets, frozen or live foods such as bloodworms or brine shrimp, and even fresh vegetables like zucchini or spinach. Just be sure not to overfeed them, as they can become aggressive and territorial if they feel threatened or overcrowded. With the right care, an electric blue crayfish can be a fascinating and beautiful addition to your aquarium for years to come!

Electric Blue Crayfish Pet people blog

Species Summary

If you’re considering adding an electric blue crayfish to your aquarium, it’s important to understand their care requirements. Here’s what you need to know:


Electric blue crayfish, also known as blue lobsters, are native to Florida and parts of the Caribbean. They are a freshwater species that prefer slow-moving or still water.


Electric blue crayfish have a relatively long lifespan for an aquarium species, living up to 5 years or more with proper care.


As their name suggests, electric blue crayfish are a bright blue color. They have two large claws and a long tail, and can grow up to 6 inches in length.


Electric blue crayfish can grow up to 6 inches in length, with males typically being larger than females.

Growth Rate

Electric blue crayfish grow relatively quickly, especially in their first year of life. With proper care and feeding, they can reach their full size within a year or two.

Behavior & Temperament

Electric blue crayfish are known for being aggressive and territorial, especially towards other crayfish. They are also nocturnal, meaning they are most active at night.

Male vs Female

Male electric blue crayfish are typically larger and more brightly colored than females. Males also have larger claws than females.

Personally, I’ve found electric blue crayfish to be fascinating and entertaining additions to my aquarium. However, it’s important to keep in mind that they require specific care and can be aggressive towards other tank mates.

With the right setup and care, though, they can make a stunning and unique addition to your aquarium.

Tank Setup

Setting up the perfect tank for your electric blue crayfish is essential for their well-being. Here are the key factors to consider:

Tank Size

Your electric blue crayfish needs a tank that is at least 20 gallons. A larger tank is always better, as it provides more space for your crayfish to move around and explore.

Make sure to choose a tank that has a lid, as crayfish are great escape artists.


Electric blue crayfish do not need any specific lighting requirements.

However, if you plan on keeping live plants in your tank, you will need to provide adequate lighting for them to thrive. A basic LED light will work just fine.

Filtration & Aeration

A good filtration system is essential for maintaining a healthy tank environment.

A hang-on-back filter is a great option for a 20-gallon tank. You should also consider adding an air stone to provide additional aeration for your crayfish.


Electric blue crayfish are tropical creatures and require a water temperature between 72-82°F. A submersible heater is necessary to maintain a consistent water temperature.


A fine-grained substrate such as sand or small gravel is best for electric blue crayfish.

Avoid using large rocks or gravel, as they can harm your crayfish.


Add some decorations to your tank to create a natural habitat for your crayfish.

Driftwood and rocks are great options. Make sure to avoid sharp edges that can harm your crayfish.


Live plants are a great addition to any tank, but make sure to choose plants that can tolerate the crayfish’s digging and burrowing.

Anubias and Java fern are great options.

Overall, setting up a tank for your electric blue crayfish requires some effort, but it’s worth it to provide them with a healthy and happy home.

Electric Blue Crayfish Pet people blog 3

Personally, I found that adding a small cave decoration to my crayfish’s tank made all the difference. It gave him a cozy spot to retreat to and made him much more active and playful.

Water Quality

When it comes to electric blue crayfish care, water quality is crucial. Here are the four sub-sections you need to consider:

Water Temperature

The ideal water temperature for electric blue crayfish is between 72°F and 82°F (22°C and 28°C).

You can use a submersible heater to maintain a consistent temperature, but make sure to monitor it regularly. Rapid changes in temperature can be harmful to your crayfish.

Water pH

The pH level of your water should be between 7.0 and 8.0. You can use a pH testing kit to monitor the levels and adjust accordingly.

Avoid sudden changes in pH levels, as this can cause stress to your crayfish.

Water Hardness

Electric blue crayfish prefer slightly hard water, with a hardness level between 6 and 10 dGH.

You can use a water hardness testing kit to measure the levels and make adjustments as needed.

Water Changes

Regular water changes are essential for maintaining good water quality. You should aim to change 10-20% of the water in your crayfish tank every week.

This will help remove any built-up waste and keep the water clean and healthy for your crayfish.

Personally, I have found that maintaining good water quality is key to keeping my electric blue crayfish healthy and happy. By monitoring the temperature, pH, and hardness levels, as well as performing regular water changes, you can ensure that your crayfish is living in a safe and comfortable environment.

Tank Maintenance

Maintaining a healthy environment for your Electric Blue Crayfish is crucial to their well-being. Here are a few tips to help you keep your tank clean and healthy:

First, make sure to perform regular water changes. This helps remove any excess waste, uneaten food, and other debris that can accumulate in the tank. A good rule of thumb is to change 10-20% of the water in your tank every week.

Second, keep an eye on the pH level of the water. Electric Blue Crayfish prefer a pH between 7.0 and 8.0. You can use a pH testing kit to monitor the levels and make any necessary adjustments.

Third, clean the filter regularly. The filter is responsible for removing any harmful toxins from the water, so it’s important to keep it functioning properly. You can clean the filter by rinsing it with water from the tank, but make sure not to use any soap or other cleaning agents.

Fourth, remove any uneaten food from the tank. Electric Blue Crayfish are opportunistic feeders and will eat just about anything, but any uneaten food can quickly lead to water quality issues. You can use a siphon or net to remove any uneaten food from the tank.

Finally, keep an eye out for any signs of illness or disease. Electric Blue Crayfish are generally hardy creatures, but they can still fall ill if the water quality is poor or if they are stressed. If you notice any unusual behavior or physical symptoms, it’s important to take action quickly to address the issue.

Personally, I have found that keeping up with regular maintenance tasks can be a fun and rewarding part of owning Electric Blue Crayfish. By taking good care of your tank, you can help ensure that your crayfish thrive and live long, healthy lives.

Tank Mates

Compatible Fish Species

If you’re planning to keep Electric Blue Crayfish with other fish, it’s important to choose compatible species. Some good options include:

  • Small, non-aggressive fish like neon tetras or guppies
  • Bottom-dwelling fish like corydoras catfish
  • Other invertebrates like snails or shrimp

In my experience, I’ve found that Electric Blue Crayfish tend to leave other tank mates alone as long as they’re not too small or aggressive.

Incompatible Fish Species

On the other hand, there are some fish species that should never be kept with Electric Blue Crayfish. These include:

  • Aggressive or territorial fish like cichlids or bettas
  • Large fish that can easily eat the crayfish, like angelfish or Oscars
  • Fast-swimming fish that can stress out the crayfish, like danios or barbs

If you try to keep these species together, you’re likely to run into problems like aggression, stress, or even injury or death.

Can You Keep Two Electric Blue Crayfish Together?

While it’s possible to keep two Electric Blue Crayfish together, it’s not always recommended.

These crayfish can be territorial and may fight with each other, especially if they’re both males.

If you do decide to keep two together, make sure you have a large enough tank with plenty of hiding places and territory for each crayfish.

It’s also a good idea to introduce them at the same time to reduce the risk of aggression. Overall, when choosing tank mates for your Electric Blue Crayfish, it’s important to keep their temperament and size in mind.

Stick with non-aggressive, bottom-dwelling, or other invertebrate species and avoid larger or more aggressive fish.

And if you do decide to keep two crayfish together, be prepared for the possibility of territorial behavior.


Feeding your Electric Blue Crayfish a healthy and balanced diet is essential for their overall health and well-being.

In this section, we will cover everything you need to know about their diet, including what to feed them, how often to feed them, and some tips to keep in mind.

What to Feed

Electric Blue Crayfish are omnivores, which means they eat both plant and animal matter.

Their diet should consist of a variety of foods to ensure they get all the necessary nutrients.

Some great options for their diet include:

  1. Algae wafers
  2. Shrimp pellets
  3. Vegetables (such as zucchini, cucumber, and spinach)
  4. Protein-rich foods (such as bloodworms, brine shrimp, and krill)

It’s important to note that Electric Blue Crayfish are scavengers, so they will also eat any leftover food in the tank. Therefore, it’s important to not overfeed them.


When it comes to feeding your Electric Blue Crayfish, it’s best to feed them small amounts of food multiple times a day.

This will help prevent overfeeding and ensure they get the necessary nutrients. Aim to feed them 2-3 times a day, with each feeding consisting of only a few small pieces of food.


Here are some tips to keep in mind when feeding your Electric Blue Crayfish:

  1. Remove any uneaten food after 2 hours to prevent it from fouling the water
  2. Provide a variety of foods to ensure they get all the necessary nutrients
  3. Do not overfeed them, as this can lead to health problems and poor water quality
  4. Consider using a feeding dish to prevent the food from spreading throughout the tank

Overall, providing your Electric Blue Crayfish with a healthy and balanced diet is essential for their overall health and well-being.

By following these tips and guidelines, you can ensure your crayfish stays healthy and happy.

Electric Blue Crayfish Pet people blog 2

Personally, I have found that my Electric Blue Crayfish loves vegetables and will often steal them from my other fish. It’s important to keep an eye on them during feeding time to make sure they are getting their fair share of food.

Common Diseases


Electric blue crayfish are generally hardy creatures, but they can still fall prey to diseases.

Some of the most common diseases that can affect electric blue crayfish include bacterial infections, fungal infections, and parasitic infections.


The symptoms of a sick electric blue crayfish can vary depending on the type of infection.

However, some common symptoms include lethargy, loss of appetite, discoloration, and abnormal behavior.

If you notice any of these symptoms in your electric blue crayfish, it is important to take action quickly to prevent the spread of the disease.


If your electric blue crayfish is sick, it is important to seek treatment as soon as possible.

The treatment will depend on the type of infection, but some common treatments include antibiotics, antifungal medications, and parasite treatments.

It is important to follow the instructions carefully to ensure that the treatment is effective.


The best way to prevent diseases in electric blue crayfish is to maintain a clean and healthy environment. This includes regularly cleaning the tank, maintaining proper water conditions, and feeding a balanced diet.

It is also important to quarantine any new crayfish before introducing them to the tank to prevent the spread of disease.

I have found that the key to keeping my electric blue crayfish healthy is to pay close attention to their behavior and appearance.

By noticing any changes early on, I have been able to quickly identify and treat any diseases before they become a serious problem.

Remember, prevention is always better than cure, so it is important to take steps to maintain a healthy environment for your electric blue crayfish.

Signs of a Healthy Electric Blue Crayfish

When it comes to keeping an electric blue crayfish, it’s important to know what signs to look for to ensure that your crayfish is healthy and happy. Here are a few things to keep an eye out for:

  1. Active and Alert: A healthy crayfish will be active and alert, moving around its tank and exploring its environment. If your crayfish is lethargic or hiding all the time, it could be a sign that something is wrong.
  2. Good Appetite: A healthy crayfish will have a healthy appetite and will eagerly eat the food you provide. Keep an eye on your crayfish during feeding times to make sure it’s eating well.
  3. Clear Eyes: A healthy crayfish will have clear, bright eyes that are free from cloudiness or discharge. If you notice any issues with your crayfish’s eyes, it could be a sign of illness.
  4. Smooth Shell: The shell of a healthy crayfish will be smooth and free from any cracks or discoloration. If you notice any abnormalities in your crayfish’s shell, it could be a sign of poor health.

Remember that every crayfish is unique and may exhibit slightly different behaviors and characteristics.

However, if you notice any significant changes in your crayfish’s behavior or appearance, it’s important to investigate further to ensure that your crayfish stays healthy and happy.

Personally, I’ve found that my electric blue crayfish is happiest when it has plenty of hiding places in its tank. I’ve added a few caves and plants to its tank, and it loves to explore and play in them. You may find that your crayfish has its own preferences and quirks, so don’t be afraid to experiment and see what works best for your pet.

Signs Your Electric Blue Crayfish is Sick

If you’re a crayfish owner, it’s important to know the signs that indicate your electric blue crayfish is sick. Here are a few things to look out for:

  1. Loss of appetite: If your crayfish is not eating or showing a lack of interest in food, it could be a sign of illness.
  2. Abnormal behavior: If your crayfish is hiding more than usual or is not as active as it used to be, it could be a sign of illness.
  3. Discoloration: If your crayfish has become pale or has developed dark spots, it could be a sign of illness.
  4. Shell damage: If your crayfish has cracks or holes in its shell, it could be a sign of illness or injury.
  5. Respiratory distress: If your crayfish is gasping for air or appears to be struggling to breathe, it could be a sign of illness.

If you notice any of these signs, it’s important to take action quickly. The first step is to check your water quality and make sure it’s within the appropriate range for your crayfish.

If the water quality is good, you may need to quarantine your crayfish and treat it with medication.

Personal Anecdote: I once had an electric blue crayfish that stopped eating and became very lethargic. After checking the water quality and ruling out any environmental factors, I quarantined the crayfish and treated it with medication. Within a few days, it started to show signs of improvement and eventually made a full recovery.


Breeding Setup

To breed Electric Blue Crayfish, you need to create a suitable breeding setup. A breeding tank should be at least 10 gallons in size and have a tight-fitting lid.

The water temperature should be between 72°F and 82°F, with a pH range of 7.0 to 8.0. You can use a sponge filter or an air-driven box filter to keep the water clean and aerated.

A hiding spot, such as a piece of PVC pipe or a cave, is also essential for the female crayfish to lay her eggs.

How To Breed

Breeding Electric Blue Crayfish is relatively easy. Simply introduce a male and a female crayfish into the breeding tank.

The female will carry her eggs under her tail until they hatch, which can take anywhere from 4 to 6 weeks.

Once the eggs hatch, the young crayfish will cling to the mother’s swimmerets for protection.


After the eggs hatch, remove the male crayfish from the tank to prevent him from harming the young.

Feed the mother and her offspring small amounts of high-quality food, such as algae wafers or sinking pellets, twice a day.

Keep the water clean and maintain the appropriate temperature and pH range. As the young crayfish grow, you may need to separate them into their own tank to prevent overcrowding.

I have found that breeding Electric Blue Crayfish can be a rewarding experience. Watching the female carry her eggs and the young hatch and grow is fascinating.

With the right setup and care, you can successfully breed these beautiful creatures in your own home.

Product recommendations for Electric Blue Crayfish:

  1. Hikari Algae Wafers– This is a high-quality shrimp and crayfish food that is perfect for Electric Blue Crayfish. It contains all the essential nutrients that your crayfish need to stay healthy and vibrant.
  2. API Aquarium Test Kit – It is important to keep an eye on the water quality in your aquarium, and this test kit makes it easy to do so. It includes tests for ammonia, nitrite, nitrate, and pH.
  3. Seachem Prime – This is a water conditioner that helps to detoxify ammonia, nitrite, and nitrate in your aquarium. It is safe for use with Electric Blue Crayfish and other freshwater fish.
  4. CaribSea Eco-Complete Planted Aquarium Substrate – This substrate is perfect for creating a natural environment for your Electric Blue Crayfish. It contains live bacteria and is easy to maintain.
  5. AquaClear Power Filter – This filter is highly effective at removing debris and maintaining water quality in your aquarium. It is also very quiet and easy to maintain.
  6. Aqueon Aquarium Water Changer – This device makes it easy to perform regular water changes in your aquarium. It is designed to be safe and easy to use, and can help to keep your Electric Blue Crayfish healthy.
  7. Zoo Med Nano 10 External Canister Filter – This is a small and efficient filter that is perfect for smaller aquariums housing Electric Blue Crayfish. It is easy to install and maintain, and will keep the water in your aquarium clean and healthy.
  8. NICREW ClassicLED Aquarium Light – This LED light is perfect for illuminating your aquarium and showcasing your Electric Blue Crayfish. It is energy-efficient and easy to install.
  9. Marimo Moss Balls – These are a great addition to any shrimp or crayfish tank, including one housing Electric Blue Crayfish. They provide a natural habitat for your crayfish and help to maintain water quality.


Now that you know everything there is to know about taking care of Electric Blue Crayfish, you’re ready to become a proud owner of one! Just remember to provide them with a suitable environment, a balanced diet, and plenty of hiding spots.

Make sure to keep the water parameters in check and perform regular water changes. Also, avoid overcrowding the tank and keep an eye out for any signs of illness or aggression.

Overall, Electric Blue Crayfish are fascinating creatures to keep as pets. They are easy to care for, and their unique colors make them stand out in any aquarium.

I remember when I first got my Electric Blue Crayfish. I was amazed by its bright blue color and its quirky personality. It quickly became the centerpiece of my aquarium, and I enjoyed watching it roam around and explore its surroundings.

So, if you’re looking for an interesting and low-maintenance pet, an Electric Blue Crayfish might be the perfect choice for you. With a little bit of care and attention, you’ll have a happy and healthy crayfish for years to come!


If you’re considering getting an electric blue crayfish as a pet, you may have some questions about their care. Here are some common FAQs:

Q: What should I feed my electric blue crayfish?

A: Electric blue crayfish are omnivores and will eat almost anything. A balanced diet should include a variety of foods, such as pellets, vegetables, and protein sources like shrimp or worms. Make sure to remove any uneaten food to prevent water quality issues.

Q: How big do electric blue crayfish get?

A: Electric blue crayfish can grow up to 6 inches in length, including their claws. It’s important to provide them with enough space to move around comfortably in their tank.

Q: Do electric blue crayfish need a heater?

A: Yes, electric blue crayfish are tropical creatures and need to be kept in water that is between 72-82°F. A heater will help maintain a consistent temperature.

Q: Can electric blue crayfish live with other fish?

A: It’s generally not recommended to keep electric blue crayfish with other fish, as they may see them as prey and attack them. However, they can live with certain types of fish that are too large to be eaten and can hold their own, such as cichlids.

Q: How often should I clean my electric blue crayfish’s tank?

A: You should perform partial water changes every week to maintain good water quality. You can also use a gravel vacuum to remove any debris from the substrate.

Personal Anecdote: When I first got my electric blue crayfish, I was worried about keeping it in a tank with other fish. I decided to try keeping it with some cichlids, and they have been getting along great! It’s important to do your research and choose tank mates carefully, but it’s definitely possible to have a peaceful community tank with an electric blue crayfish.

Reference: Wikipedia.


Hi there! My name is Jacob, and I'm the founder of this Pet people blog that talks all about aquarium and fishkeeping. I've been passionate about fish and aquatic life since I was a kid, and I've spent countless hours learning about different species, their habitats, and how to create the perfect environment for them to thrive in.

Leave a Reply

Recent Posts