
In the crayfish forums we frequent, they suggest that diet is the main cause of coloration. We feed a variety to ours including shrimp pellets, Hikari crab feed, fish, algae wafers, and some fresh fruits and veggies (like oranges and green beans, even garlic is okay).
Full Answer
What do crayfish like to eat?
You can also feed it cabbage leaves, shelled peas, and frozen bloodworms to supplement its diet. When you feed your crayfish, drop the food next to its hiding place so it's able to find it.
How to take care of a crayfish?
To take care of a crayfish, feed it a balanced diet that consists of mostly sinking pellet food. You can also feed it cabbage leaves, shelled peas, and frozen bloodworms to supplement its diet.
What is causing my crayfish to change color?
In the crayfish forums we frequent, they suggest that diet is the main cause of coloration. We feed a variety to ours including shrimp pellets, Hikari crab feed, fish, algae wafers, and some fresh fruits and veggies (like oranges and green beans, even garlic is okay). Our P. acutus acutus has maintained very bright blue chelae coloration.
What do you need to raise crayfish?
All you need to raise one of your own is a roomy tank, the right kind of food, time, and attention. Crayfish make excellent pets, and can often be seen building little hills, mounds, digging, hiding among shadowy rocks and plants, and burrowing in the gravel at the bottom of their tanks.

How do crayfish improve their color?
0:492:38How To Make Your Crayfish More Colorful (Viewer Question) - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe first thing that comes to mind is nutrition you want to feed them. Some people swear by justMoreThe first thing that comes to mind is nutrition you want to feed them. Some people swear by just live foods some people only do processed foods I say give a mix.
What makes crayfish blue?
When diet low in carotenoids (forms of vitamin A), the crayfish loose the ability to develop reds and yellows in the exoskeleton. The exoskeleton then takes on a bluish cast.
What's the best food to feed crayfish?
Anything that you use on your fish is fine for your crayfish. Things like dried krill, mosquito larvae, and worms do well. Many owners will also use their crayfish as decomposition machines. You can provide them with dead fish or shrimp from other tanks in your collection.
Can crayfish change color?
During mating season, the cray will molt in anticipation of the coming intercourse and exhibit color changes. This is called the second, or mating, phase of the cray's color patterns. The Orconectes rusticus will change from a dull tan to a dark grey with vivid red, white, and black stripes on its claws.
What do you feed blue crayfish?
Feeding. Crayfish will typically eat whatever they can catch, but since they are slow-moving, they are rarely able to harm most types of fish or shrimp. They prefer foods like invertebrate pellets or blanched vegetables (such as zucchini, carrots, and spinach), but will also eat fish food and algae wafers.
What colors can crayfish be?
Crawdads, mudbugs, crawfish, or whatever they are regionally called, range in color and shade. Most often they appear to be a deep moss green, with touches of brown or a muted orange. Depending on location, water temperature and a few other factors, they can take on a red, blue or black hue.
Can crayfish eat raw carrots?
Crayfish are freshwater crustaceans who are often kept as aquatic pets. Crayfish enjoy eating many vegetables, including spinach, lettuce, zucchini, peas, and carrots.
Do crayfish like bananas?
Fruit –bananas, grapes, and apples are some fruits crays will eat. Live and dead fish. Aquarium plants –like guppy grass, densa, camboba, and hornwort are perfect for feeding crays as they last long.
How often should you feed crayfish?
How Often to Feed Crayfish. They do not need to be fed in large amounts, especially when they're adults. In terms of pellets this could be a 0.75 inch pellet per fish per day when they're young, and every other day for an adult.
How do you make a crayfish more active?
0:5411:06General Crayfish Care,Keeping Crayfish with other fish DIY LINK IN ...YouTubeStart of suggested clipEnd of suggested clipIt's really important we provide plenty spaces to hide even more so if you plan on introducing.MoreIt's really important we provide plenty spaces to hide even more so if you plan on introducing. Multiple crayfish into your fish tank despite.
How many colors do crayfish come in?
Over half of the more than 500 species occur in North America. Nearly all live in fresh water, although a few species occur in brackish water or salt water. Crayfish are characterized by a joined head and thorax, or midsection, and a segmented body, which is sandy yellow, green, red, or dark brown in colour.
Why do blue crayfish turn red?
A relatively simple explanation for the color change emerged in a study published in 2002: Heat changes the shape of a protein called beta-crustacyanin in the shell, relaxing its bonds with the pigment astaxanthin. The freed pigment reflects wavelengths of light in the red spectrum.
How rare is a blue crayfish?
The probability of the creature having this colouring is widely touted as being one in two million. The University of Maine Lobster Institute is among those to have quoted these odds in the past, though its executive director, Rob Bayer, admits they are merely a "guess".
Can a crayfish be blue?
The blue crayfish is frequently kept in freshwater aquaria. In the wild, this species varies from brown-tan to blue, but an aquarium strain has been selectively bred to achieve a brilliant cobalt blue color....Blue crayfish.Everglades crayfishPhylum:ArthropodaSubphylum:CrustaceaClass:MalacostracaOrder:Decapoda11 more rows
How rare is a blue crawfish?
one in 10,000 crawfishOnly one in 10,000 crawfish turn blue, according to the Audubon Institute.
How much is a blue crayfish worth?
Electric Blue Crayfish - Aquatic Arts on sale today for $ 14.99.
What do crayfish eat?
You can keep your crayfish healthy by feeding them what they would normally find in their natural habitat.
Sinking Pellets
Sinking pellets will be a large part of your crayfish’s diet. They should make up at least 75% of it.
Fresh and freeze-dried and frozen foods, and fruits
A varied diet is important when you’re looking at what to feed crayfish. As freshwater crustaceans, they have special dietary needs, especially young crayfish which will be talked at the bottom of the article.
High calcium vegetables
As invertebrates, Crayfish require a large portion of calcium so they can molt every couple of months.
The fruit you can feed your pet crawfish
Fruit is a bit of a complicated matter when it comes to feeding crayfish. Fruit should be used sparingly as it’s not nearly as nutritious and beneficial to crayfish as vegetables are. In fact, Any and all acidic fruit should also be avoided as it can throw off the pH balance of your aquarium or pond which could end up killing your pet!
A note on the aggressiveness of the crayfish
Crayfish are NOT social aquarium friendly. Anything you place in the aquarium or pond with a crayfish is almost certainly to be viewed as a quick meal and will most definitely be eaten. They are also considered very aggressive feeders and particularly strong swimmers, able to catch prey which you would think were much faster than them.
What do crayfish eat in the wild?
other than commercial foods, they eat just about anything local in their ecosystem that’s on this list. So while they won’t be out getting broccoli, they will chow down on most of the live fish, snails, and plants, and insects they encounter in their environment.
Why do shrimp turn blue?
Leave the old blue exoskeleton in the tank and if they eat it, the blue can come back. The blue is not genetic but is caused by a harmless virus that gives its blue color to the crayfish. Some shrimp and other invertebrates may also turn blue if they eat the old exoskeleton from a blue cray.". - Dan M.
Why is my elytra blue?
Elytra and Antenna said: The blue is caused by a virus but the ability for them to beat off the virus is affected by conditions. I haven't seen decent information on how to promote the virus and blue coloration but some species like P. alleni are better in captive conditions.
Does distilled water kill crayfish?
Distilled water won't kill your cray but when water is distilled, all things are removed from the water, the good with the bad. If you wanted to reduce the amount of calcium, you could try a mixture of your tap with distilled (RO water) or try switching to spring water. Click to expand...
What do Crayfish Eat in the Wild?
Crayfish, in the wild or kept as pets, are omnivorous scavengers. Omnivores will eat a broad diet, including any plants, small live fish, shrimp, insects, plankton, algae, and worms.
Food Options for Blue Crayfish
The Electric Blue Crayfish are also known as Blue Crayfish, Sapphire Crayfish, or Florida Crayfish will both brighten up and liven up your tank. Found almost exclusively in the state of Florida, this native species is often found east of the St. Johns River.
Food Habits of Dwarf Blue Crayfish
Another popular crayfish is the Dwarf Blue Crayfish. Again, because of its bright blue color and its small size, it is a unique, attractive, and entertaining addition to many freshwater aquariums.
What to Feed Crayfish in the Aquarium
The unique and rare appearance of Crayfish plus their adaptability and hardiness have made Crayfish popular aquarium pets. They have proven to be easy to care for and with the proper diet can live up to 7 or 8 years.
What Do You Feed Fry and Juvenile Crayfish?
When crayfish hatch they will be probably invisible to the human eye and they will live under the mother’s tail. It will take about 15 days for them to grow large enough to start eating and will be about one-half inch long. One way you may notice they have grown is that the food put in the tank will disappear at a faster rate, CLUE!
How Much and How Often to Feed a Crayfish?
As an adult, your crayfish will need to be fed every other day and if using pellets as a food source only feed them three-quarters of one per crayfish. If you have multiple crayfish in a tank try placing the food in the various areas where only the desired crayfish will get it, blunt tongs may be useful.
Summary
The crayfish (Procambarus clarkii) became the official state crustacean of Louisiana in 1983.
Community Q&A
I have two baby crayfish in a 50 inch fish tank. The water is just above their heads. I also have places for them to hide but no place for them to dig. Is that an acceptable environment for them?
Tips
Consider adding a thick layer of sand or gravel to the bottom of your tank. Crayfish enjoy digging, whether it’s to hide, search for food, or simply to play.
Warnings
Never release a crayfish that’s been raised into captivity into a natural body of water. Doing so can have serious repercussions on native populations of crayfish and other species.
About this article
This article was co-authored by Doug Ludemann. Doug Ludemann is the owner and operator of Fish Geeks, LLC, an aquarium services company based in Minneapolis, Minnesota. Doug has worked in the aquarium and fish-care industry for over 20 years, including having worked as a professional aquarist for the Minnesota Zoo and Shedd Aquarium in Chicago.
What do crayfish eat?
A crayfish’s main diet should be comprised of sinking Shrimp Pellets, but they also enjoy some green vegetables and frozen foods in their diet. They are not picky when it comes to green vegetables and can be offered cabbage leafs, zucchini medallions and shelled peas.
Where do crayfish hide their food?
Crayfish are notorious for hiding their food, and will often have a stash hidden away in a cave or flower-pot. On top of that, they are also messy eaters, and when coupled with hidden food , water quality can quickly decline. When doing water changes, you should always check for a stash of food in any of the crayfish hiding spots.
How long does it take for a crayfish to hatch?
After around four weeks, the eggs will hatch and the young crayfish will emerge. The female crayfish will take care of the young for a short period of time, but should be removed after a few days to prevent the fry from being eaten.
How long do crayfish live?
If a crayfish is well cared for, they will usually live 2-3 years, with some species living even longer.
How many species of crayfish are there in the world?
When choosing a freshwater crayfish, it’s important to know that there are well over 100 species of crayfish from around the world. While most crayfish require cool water, some require tropical temperatures to thrive. Before purchasing a crayfish, a owner should do some research to determine the crayfish species needs.
Why is it important to have crayfish in an aquarium?
Because of this, it is very important to provide numerous hiding places and enough space for each crayfish in the aquarium – unless someone wants their crayfish to become an expensive meal for the other tank inhabitants. It becomes much trickier when it comes to housing crayfish with fish.
Do crayfish breed?
Breeding. Most species of crayfish will breed at any time in the home aquarium, though feeding high quality foods and keeping the water pristine will help trigger breeding behavior. Crayfish can be frustratingly hard to sex for someone new to keeping them, but the easiest way is to look at the swimmerets. The males will have swimmerets that extend ...
Do Crayfish Turn Blue?
Like I have mentioned above, they could turn to any colors that is around them when they molt.
What Color do Crayfish turn to in the Winter?
Crayfish normally change colors, especially in the winter. This is common for crayfish in the wild.
How to handle a crayfish?
If you must handle your pet crayfish, it is important to grab the crustacean from behind. Grab the main part of their body, behind their pinchers to minimize the risk of being pinched. It is best to place them directly into a holding container so they do not try to wiggle and fight their way out of your hands.
What is a crayfish?
Crayfish are fun pets that are easy to take care of as time goes on. They do not require much attention, and they never mind being left behind at home, like a dog or even a cat might. They are fun to watch and do not make any noise that will distract or irritate their human companions. Hopefully, our care guide will make it easy for you to transition to crayfish ownership and to fully enjoy your new pet for many years to come.
Where do crayfish live?
There are multiple species of crayfish, some of which can be found living in murky waters, like swamps and paddy fields. Other species of crayfish live where water runs freely, like streams.
