What Do Crayfish Eat? – The Care, Feeding and Breeding of Crayfish (Crawfish)

Crayfish ~ Everyone has seen a lobster previously, but many individuals do not realize that little lobster-like creatures exist, and these can be kept also as family pets! These are called crayfish or crawfish. They do without a doubt look like small lobsters, are shellfishes and even have the same shade as them.

They are various in many methods besides their size, however one of the much more interesting is that they live just as well in fresh water as they do in salt water. This has enabled lots of people to maintain them as pets in little fish tanks at home.

If you determine to do something similar to this, after that one of the very first problems you will certainly have is figuring out exactly what they consume so that they can survive and function well with their other container friends.


For any person seeking a quirky and also intriguing family pet, the freshwater crayfish is an outstanding selection. They are very easy to care for, incredibly durable, and also frequently connect with their owners. While crayfish are most definitely not secure for a community aquarium, it is well worth having a container committed to crayfish just to enjoy their shenanigans.

When choosing a freshwater crayfish, it is very important to understand that there are more than 100 types of crayfish from worldwide. While a lot of crayfish need amazing water, some need tropical temperature levels to flourish.

Before acquiring a crayfish, a proprietor should do some study to determine the crayfish varieties needs. If a crayfish is well cared for, they will normally live 2-3 years, with some types living also longer.

Crayfish Housing

crayfish house

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A solitary crayfish can be kept in a fairly little fish tank. A 5 to 10 gallon aquarium is usually more than adequate, particularly if routine water adjustments are provided. Crayfish are notorious for hiding their food, as well as will commonly have a stockpile hidden away in a cavern or flower-pot.

In addition to that, they are additionally unpleasant eaters, and when coupled with surprise food, water quality could promptly decline. When doing water adjustments, you must constantly check for a stash of food in any one of the crayfish hiding areas.

If more than one crayfish is mosting likely to be housed in a tank, after that a minimum of 20 gallons need to be provided. Crayfish are cannibalistic by nature, when a crayfish moults it is virtually defenseless until its covering solidifies again.

During this time, it will hide for a few days, so don’t be too alarmed if a crayfish goes away for an approximately a week at once. Because of this, it is crucial to give many hiding places and enough room for each crayfish in the fish tank– unless a person wants their crayfish to become an expensive meal for the various other tank occupants.

It comes to be much harder when it comes to real estate crayfish with fish. There are several accounts of people successfully keeping crayfish as well as fish together, but offered enough time, either the fish or the crayfish is going to be consumed.

There is nothing worse compared to losing a large, pricey fish to a crayfish during an evening. Or additionally, discovering crayfish parts spread across a fish tank, with a really complete looking fish. While a person can absolutely try to keep fish and crayfish together, it ends severely typically.

The filtering for a crayfish must generally be a HOB (Hang-on-back) filter. While a sponge filter is more affordable compared to an HOB filter, the air line leading out of the storage tank gives the crayfish an ideal retreat course. If you leave the crayfish alone long enough, you will ultimately see a crayfish running around on the flooring of your fish space.

What Do Crayfish Eat?

what do crayfish eat?

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Well, it may be shocking to keep in mind that crayfish will certainly eat almost anything around them. This is great news for those maintaining crayfish as they will certainly eat nearly anything you give them.

This is additionally bad news, nonetheless, as anything in the storage tank is up for grabs for the crayfish to dine upon.

This means, if you have plants in your aquarium, they could be consumed, however much more significantly it means that if there are various other animals in your tank, they might end up being supper too! This will certainly take some careful preparation on your component to ensure that you do not put things together in the tank that will certainly wind up killing one another.

Maintaining Crayfish With Various Other, Marine Pets

So if this holds true, you could be questioning exactly what you could feed your crayfish that will maintain it from munching on its storage tank friends. Tiny fish, as an example, are a great snack for these crayfish, however this is problematic in tanks as the crayfish could begin to assume that any kind of fish is a treat.

Picture your surprise when you see your nice fish sleep on the bottom of the storage tank just to be gobbled up by the crayfish!

Wild Crayfish Diet

In the wild, you will locate crayfish eating dead fish or shrimp as well as plant material. So if you are mosting likely to have them in bondage, it is best to feed them plants such as lettuce and of course you can use crayfish food.

This contains things like pellets of shrimp or even algae. You can be creative with much of this, however the most essential thing to remember is that these animals will certainly consume anything around them.

You have to get ready for this by either dividing them from other animals in their very own tank or by ensuring that they are fed all right to steer clear of from smaller fish you actually want to keep along with any costly plants you might have in your storage tank!

Crayfish Breeding

what do crayfish eat in the ocean

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Most types of crayfish will certainly reproduce any time in the home fish tank, though feeding high quality foods as well as maintaining the water immaculate will help activate breeding behavior.

Crayfish can be frustratingly hard to sex for someone new to keeping them, but the most convenient way is to look at the swimmerets. The males will certainly have swimmerets that prolong past the back legs, while the women won’t have any kind of past the back legs.

When mating begins, the male down payments a sack of sperm on the lady that then passes her eggs via the sperm to feed them. After the eggs have been fertilized, they are after that kept under the tail by the female who need to be positioned in a storage tank on her own at this point.

After around four weeks, the eggs will certainly hatch as well as the young crayfish will emerge. The women crayfish will care for the young for a brief amount of time, but must be eliminated after a few days to prevent the fry from being consumed. A big nursery tank is needed if any type of number of crayfish fry are expected to survive as they are incredibly cannibalistic like their parents.

The baby crayfish can be feed blanched cabbage leafs or lettuce leaves, as well as eat detritus in the container. As the crayfish grow, the larger ones should be gotten rid of from the storage tank as they will certainly feed voraciously on the smaller sized crayfish.

Establishing a Crayfish Aquarium

  • Establish a 10-gallon aquarium someplace it will certainly acquire natural light as well as the water will definitely remain at space temperature level. The suitable water temperature level for your crawfish counts on specifically what kinds you have– potentially in between 60 as well as 80 degrees F.
  • Fill out lowest level of the fish tank with concerning 3 inches of fish tank gravel. Arrange the crushed rock so it has hills in addition to valleys.
  • Consist of aquarium-safe rocks and logs to the tank. Add products huge enough that your crawfish can utilize them to conceal. PVC pipe additionally operates well as a hiding flow, as long as its dimension huges enough that the crawfish could easily go through it. Make sure designs usually aren’t so close to the top of the tank that the crawfish could utilize them to get away.
  • Consist of a clear cover or mesh show top to your aquarium to keep your crawfish from venturing out. A routine storage tank hood with light isn’t really suggested due to that crawfish don’t call for or prefer excessive light in their setup.
  • Add water to your aquarium up till the water mosts likely to the very least 6 inches deep. Organize the container to ensure that a few of the parts extend out of the water in scenario your crawfish wishes to mingle ashore some time.
  • Establish your filter. A hanging filter that places a stream of water right into the container with the uptake immersed will certainly produce a mild water flow that profits your crawfish.
    Allow the filter to compete 1 Day prior to continuing.

10 Fun Facts About Crayfish

what do crayfish eat in captivity

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1. Crayfish have to do with the Shellfish group. This, consequently, comes from the Arthropods course. Which indicates that crayfish belong to the following: shrimp, crabs, and krill. They are also the loved ones of barnacles and lobsters;

2. There are 3 other names the crayfish goes by. Right here you go: mud pest, crawdad, and also craw-fish. River crab is an additional name for this sea creature;

3. Allow’s have a look at the aspect of a crayfish. First off, there are differences in appearance in between the woman and the male. A women crayfish comes with an opening; it lies in between her last 2 pair of legs. Her initial 2 swimmerets aren’t created. These swimmerets are located after the lady’s last legs. In fact a lady is additionally easy to recognize by the prompt her tail’s bottom.

A man’s swimmerets have the form of prongs; likewise, they’re long. Another thing to distinguish males from females. The former are competitive throughout the breeding period. They likewise combat amongst each other for territory;

4. The environment of crayfish relies on the type of household it belongs to. 2 kinds live in the north hemisphere. An additional family chooses these areas: South America, Australasia, and Madagascar. The name of this family is Parastacidae. Crayfish species likewise occupy parts of Europe. North America has more than 330 crayfish varieties. You will not discover them in Antarctica or Africa;

5. The size of the most usual crayfish is 3-4 inches (which is 7.62-10.16 centimeters). There is, nonetheless, a truly tiny crayfish. The name of this fellow is the dwarf crayfish. Big specimens (that is, bigger compared to the 3-4 inches we stated) are additionally located in the wild. These reside in deep lakes;

6. Crayfish do not have simply one shade. On the contrary. In act these shellfishes can be red, white, pink, and blue. You will also discover them in dark brownish and sandy yellow. White is the least usual color of the 6. The most constant color is red. Blue comes second; crayfish.

7. The diet of a crayfish in the wild consists of lots of sorts of food. This indicates plants, water birds, and shrimp. These animals’ diet regimen also has things like eels, snails, pikes, and also pests. Plankton, fish, and worms are tasty for them, also. The crayfish won’t reject these, either: feline food and hotdogs;.

8. The recreation phase of crayfish occurs in a certain method. The man will certainly place a package having its sperm on the stubborn belly of a woman. One more fascinating fact is that this package will certainly after that reach her swimmerets, where it will remain connected. The eggs are going to stay on the lady’s tail;.

9. The lady of a cold water crayfish carries these eggs for greater than 4 weeks. Warm water crayfish varieties maintain them for 1 month. The breeding period begins in the springtime months. When the hatching is done, the women crayfish will certainly care for her children alone.

10. The variety of eggs she lays is 80-575. After birth, the offspring remains attaches to its mommy’s tail. Maturity is reaches as quickly as the hatchling is 1 3/8 inches (3.49 cm). The crayfish reaches its adult dimension when it’s 4 years of ages.

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