Caring For Blue Crayfish: The Best Only Care Guide You’ll Ever Need **New 2002

I keep a Blue Crayfish as a pet. It’s a unique and exciting pastime, but it’s also a lot of fun. Seeing your small creatures carry rocks is a lot of fun. You can veg out in the tank’s nooks and crannies when you’re bored. With two crayfish, you’ll occasionally see them go at it.

When it comes to fighting, things might become a little risky. When I caught my first crayfish, I had to learn this lesson hard. It was a crayfish with electric blue scales.

First came the blue, then came the white crayfish, and soon after that, I felt it was time to acquire another.

Everything seemed OK at first. The only snag was that there was one issue. You don’t need a genius to figure out what’s wrong with having only one crayfish.

My crayfish started fighting a little bit, but no one was wounded. Later, we were running about the tank like crazy, only stopping to hide for a few minutes at a time. Then I bought a second refuge so that each crayfish could have its own space.

I ran out to the pet store and got a second hideaway for the cat right away. It seemed like an excellent technique to reduce crayfish fighting, so I adopted it.

As soon as I returned from acquiring a second hideaway, I discovered a surprise. The situation looked more like a horror movie than a crime scene. My white crayfish, which is nearly translucent, had ripped apart my electric blue crayfish and was devouring me. Seeing blue within my white crawfish was a little unsettling.

For the sake of crayfish safety, here are a few guidelines to follow when you have two or more of the tiny creatures in your care:

Providing them with food

When crayfish are starving, they might become violent. – When we’re hungry, we tend to do the same thing. When it comes to eating our own, there is no difference. It isn’t an issue for crayfish, which appear to feed on each other without a problem. So feed your crawfish regularly. Fish and other crayfish can be lost or eaten by ravenous crayfish.

Two Distinctive Hideouts

Previously, I’ve spoken a bit about this. If you have more than one crayfish, you’ll need separate hiding places. Crayfish violence can occur in a tank if there is just one hiding place for the animals. It’s time to get a second hideaway.

The same kind of animal or plant

Finally, do not mix crayfish of various sorts.

This species of crayfish can only be found in the state of Florida. The state’s various waterways are home to these creatures.

Electric blue crayfish, despite their fragile appearance, is quite robust. It can thrive in a wide variety of conditions. As a consequence, aquarists of all ability levels may use them.


Like other crayfish species, the Electric Blue Crayfish has a relatively long life expectancy of 5 to 6 years. Crayfish in captivity can live up to twice as long as their wild counterparts, although this is the norm.

For crayfish to live as long as possible, you’ll need to put in the effort to keep them healthy and their habitat in good condition.

Ammonia levels and sickness can limit their life expectancy if not addressed. To ensure the longest possible life for your crayfish, ensure the water is always clean and free of contaminants.


Electric Blue Crayfish can be mistaken for lobsters at first glance. While crayfish and octopuses are members of the same family, crayfish are significantly smaller and exhibit distinctive physical traits.

The exoskeleton of the Electric Blue Crayfish is tough. As they grow, they shed their protective shell several times.

It is positioned in the thorax, the most critical section of their body. A pair of dark black eyes may be seen if you look carefully enough.

Thorn-like horns emerge from the head to protect the eyes and mouth. It looks like something you’d find on a lobster or a tiny shrimp.

Antennae can also be seen protruding from the head. The crayfish utilize their antennae to help them detect their environment and taste their prey.

Crayfish, like Electric Blue Crayfish, is tall and slender. These creatures only have four little legs. These chelipeds, or claws, go hand in hand with the creature’s massive paws.

The crayfish’s tail is located at the end of its body. The tail curls inward like a lobster’s. The inside of the seat is covered in tiny appendages known as swimmerets—crayfish use swimmerets to help them swim.

The tank was filled with Sapphire Crayfish.

The Electric Blue Crayfish’s most significant distinguishing characteristic is, of course, its vivid blue hue. Cobalt blue is the most sought-after color for specimens. Bright blue with darker dots and white parts on its bottom is a common combination.

There are several different shades of gray. You can observe crayfish mostly coated in brown or tan, even in the wild. On the other hand, the blue ones are the most common in pet shops and aquariums.

In several respects, males and females vary from one another. These variations are so minor that it is difficult to tell the two apart. The shape of the tail is often an important clue.

When fully extended, the tail of a male bobcat is often straighter and longer than the tail of a female.


About 4 to 6 inches is how long an adult Electric Blue Crayfish may attain when wholly developed. Invertebrates will molt as they grow, as we stated before.

As children, they are subjected to this condition regularly. It is still possible for an adult to molt, although it is far less common than when they were younger.

What Should I Do About My Electric Blue Crayfish?

Aquarists of all levels can benefit from this species, whether experienced or just starting. There is no need to worry about Electric Blue Crayfish care because they are pretty hardy and can thrive in various conditions.

Nevertheless, you must follow a few simple care instructions. If you want your crawfish to grow to their most significant potential, you must give them a pleasant environment.


According to some fish keepers, Electric Blue Crayfish may thrive in aquariums as little as 10 gallons. There is a downside to this, though.

Because of their adult size, you’ll want a tank that holds at least 30 gallons of water.

A 20-gallon tank is a good size for raising juveniles. On the other hand, adults require a lot of room to roam. Keeping multiple crayfish in a larger tank reduces the likelihood of aggressive behavior.

Parameters of the water

Replicating their natural habitat is the key to keeping fish and other organisms happy in captivity. It’s no different with electric blue crayfish. In Florida, though, you have a wide range of options to choose from since they can thrive in various habitats.

Typically, these crayfish are found in the Saint Johns River or in minor tributaries in the vicinity. The water temperature is moderate, and the pH is close to neutral.

You don’t need to duplicate the ambiguity to keep your crayfish satisfied. If you comply with the following guidelines, these animals should adapt to any environment.

Temperature range: 65-75°F (ideally 70°F).

6.5 to 7.5 on the pH scale

DKH (degrees of hardness) of water: 3-10

Setting Up Their Tank’s Interior

With Electric Blue Crayfish, you don’t have to worry about being fussy about their surroundings. It is unnecessary to reproduce the natural habitat for this kind of invertebrate or fish. You are free to decorate your home with anything from fake flora to wacky figurines.

All you need is a cave to do this.

PVC pipe, inverted pot, and fake cave are all excellent alternatives. The crayfish will use this cave as a refuge.

Crayfish in their cave: an Electric Blue Crayfish

There should be a lot of room in the cave. When the crayfish are molting, they will use it the most. Damage and assaults are far more likely while they are shedding. As a result, a safe place to live is a need.

Keep an eye on living plants since they may be unpredictable. Because of their voracious appetites, Sapphire Crayfish are known as plant-eating predators.

Gravel or sand can be used to fill the tank’s bottom. Crayfish may dig and burrow sometimes if you utilize a fine-grained sand substrate—just another way for your crawfish to hideout.

We propose employing a robust filtration system when it comes to equipment. It should be able to cycle water efficiently. A lot of waste is generated by crayfish, and they are susceptible to high ammonia levels. It’s essential to keep your filter in an appropriate setting.

Diseases That May Occur in the Future

Like any other fish in your aquarium, the Electric Blue Crayfish is susceptible to illness. Fortunately, their thick shells keep them on the healthy side.

Poor water quality is the most likely cause of a crayfish illness.

These organisms do not tolerate high ammonia and nitrate concentrations. They are more vulnerable to infections if they are under stress.

However, you may reduce the likelihood of these problems by doing a 25% water change. We recommend changing the water every week to achieve the most outstanding results.

Some crayfish can infect your aquarium with illnesses.

Invertebrates can be affected if it is brought into the tank. If you’re buying a wild-caught Electric Blue Crayfish, be aware that it’s a common problem for crayfish.

Food and Nutrition

Animals such as Electric Blue Crayfish may eat a wide variety of things. If they can get their claws on something, they’ll devour it!

You may give your crayfish a well-balanced dry, and live food diet while keeping them in captivity. We prefer to provide the following options:

The usual sinking pellets

Flakes of ash

Wafers of algae

Crayfish can be fed shrimp or blanched vegetables as a special treat from time to time.

Keep the portions manageable for your pets. If you provide them too much, the water will become contaminated.

Temperament & Behaviour

Bottom feeders, these critters will spend all their time exploring and foraging at the tank’s base.

Electric blue crayfish, in contrast to other crustaceans, are not timid! They’re active, and they’ll be circling the tank at any given moment. They’re a lot of fun to watch because of this.

These organisms tend to be territorial and aggressive. Earlier, we had indicated that they’d consume whatever they could get their claws on. They may try to grab neighboring fish, but they won’t have much luck if the fish is paying attention.

You may even see your crayfish being a little more inventive in their attempts to annoy their tank mates. They typically climb on tank decorations like pillars to get closer to fish or the tank’s cover.

Tank Mates for Electric Blue Crayfish

As a general rule, it is very discouraged to house other animals alongside violent invertebrates. When it comes to Electric Blue Crayfish tank mates, though, this isn’t the case.

As long as you prepare ahead, you may keep this species in big community tanks.

At the bottom of the water column, you’ll find these crayfish. It’s best to include fish from various tank regions. Make sure you hire swimmers that can keep up!

Every passing fish will be caught and eaten by Sapphire Crayfish. The crayfish won’t be able to catch fast-swimming fish so that you may relax.

Consider the following as potential tank mates:

  • Hatchetfish
  • Quick Danios
  • Darters of all Colors
  • The butterflyfish of Africa
  • Shark, Red-tailed
  • Guppies
  • Oysters of the Sea


In captivity, Electric Blue Crayfish have been bred extensively. Your aquarium will be overflowing with vibrant color because of the large number of eggs they may deposit at once.

To provide the bonded couple time to carry out their unique breeding ritual, place them in a separate breeding tank. The male will give the female a sperm bag. After that, she’ll lay her eggs, which he’ll fertilize by passing through the sperm.

Once the eggs have hatched, she will carry them under her tail for weeks. Before the eggs hatch, the male should be removed to ensure that he does not consume the newborns.

About four weeks after breeding, tiny crayfish will start to appear. The mother may take care of her young for a few days after birth. You’ll want to remove her from the tank after around three days to avoid aggressive behavior.

In the future, you may feed the babies spirulina, baby brine shrimp, and pellets to help them grow up. You’ll have a tank full of giant creatures in no time if you keep crayfish.

Do You Think It’s Time to Get Your Own?

The decision is yours for those of you who are familiar with Electric Blue Crayfish care.

Those intriguing creatures have kept us occupied for a long time. More than any other freshwater fish we’ve ever had in our care!

We recommend them because of their eye-catching color, low-maintenance care requirements, and high level of activity.

We’d love to hear what you think, so please don’t hesitate to get in touch if you have any questions or suggestions! We sincerely hope you found this helpful tutorial, and we’ll be back soon with another one.

Electric Blue Crayfish Breeding

The Electric Blue Crayfish is a magnificent species and can be bred for breeding purposes. They can lay hundreds of eggs in one clutch. In captivity, the species breeds extensively. It is possible to produce them in a dedicated aquarium, or you can pair them and place them in a communal tank. The male deposits sperm onto the female. The female carries the egg beneath her tail for about a month until it hatches. The male should be removed before the eggs hatch.

Once you have a male, the next step is mating. It is an important step, as males may not be able to do it alone. After mating, the male will climb onto the female’s back and grip her with his claws. He will then pass a sack of sperm to the female, which will fertilize the eggs. If the mating process does not go smoothly, the female will usually return to the breeding tank or community tank.

During breeding, male and female electric blue crayfish can be aggressive toward each other. The male will have claspers between his walking legs and his swimmerets. He will be in a ‘V’ position when not in use. The female has no claspers and has a gap between her swimming legs and the last two legs. You can keep the electric blue crayfish in a tank with a pump when she is in the breeding season.

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People also ask - FAQ

A blue crayfish needs special attention. Care for Crayfish as a Pet Make sure the tank is set up correctly. Crayfish require a tank filled with clean, fresh water at all times. Add some crayfish hiding places... Easy feeding and adequate nutrition are provided with shrimp pellets. Set up a second tank for molting crayfish.

Crayfish, in general, are omnivores. In addition to your aquarium plants, crayfish will feed on lettuce, romaine lettuce, fish flake food, shrimp or algal meal pellets, and many kinds of shellfish and worms, including tubifex and clam. Every day, give your crayfish one 3/4-inch pellet equivalent.

Children and first-time animal owners alike will enjoy keeping crayfish as pets. Taking care of them is quite simple, they don't need a lot of room to live a happy and healthy life, and they're a lot of fun to watch in their habitats.

Tank Companion The Danios (zebra, celestial pearl) Hatchetfish. Darts of the rainbow. Butterflyfish from Africa. Rasboras. Sharks with brightly colored fins. The tiger's claws are out. Minnows that are bright red in color.

It's possible that your school's water pipes are less than three years old or have recently undergone extensive plumbing repairs, which might make your tap water hazardous to your crayfish if you've already conditioned the water and acclimated them. It's possible that you'll have to utilize water from an alternative source, such as a bottle.

Crayfish require a lot of oxygen, thus an air pump is a must to keep the water fresh. They'll be able to stay immersed all the time.

It is possible to keep a solitary crayfish in a tiny aquarium. Most people don't need much more than a 5 to 10-gallon aquarium, especially if they perform frequent water changes on it. It's common for crayfish to keep their food concealed in a cave or a flower pot, and they're known for it.

Crayfish, it's safe to say, don't have feelings of loneliness. Providing a variety of plant stuff, algae, and detritus is the best way to keep it engaged. The addition of extra fish or crustaceans will not increase its quality of life, according to my own opinion.

Unless the water is aerated or filtered, crayfish will have to climb out of the water to receive the oxygen they need. In still water circumstances, such as those seen in tanks without a filter or airstone, crayfish will get their oxygen from the air.

Crayfish feeding schedule. When they're adults, they don't require as much food as when they're young. When the fish are small, you may feed them a 0.75-inch pellet every day, and when they are adults, you can feed them every other day.

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