If you own a blue crayfish, you may have learned the hard way that not just any ol’ fish will work in a fish tank with a crayfish. Finding blue crayfish tank mates is not that hard to do, but you have to know what types of “friends” your blue friend will like.
Bottom Feeders and Slow Fish
Bottom feeders and slow fish do not make good blue crayfish tank mates. As you probably know, crayfish love fish of all types. This means live fish and dead fish alike. So if you put slow moving fish in the tank, or fish that feed on the bottom of the tank, the chances of those fish getting eaten are pretty friggin’ good.
Tank Mates that Will Work
As it turns out, there are fish that can be put in a fish tank with blue crayfish and survive. Well fish that will at least have a much better chance of surviving. These types of fish are of course the exact opposite of the fish mentioned above.
Fish that can work in a fish tank with blue crayfish are fish that can swim fast and/or swim towards the top of the tank. For example, I have a red tail shark in my ten gallon tank. He’s a fast swimmer and does pretty well with the crayfish.
I also have a hatchet fish. Hatchet fish work great in a tank with crayfish because they swim at the top of the aquarium. This of course makes them great blue crayfish tank mates. Two other types of fish you may want to consider are rosy red minnows and rainbow darters; among several others.
Just do your research like you are doing now. There are plenty of pretty fish that can coexist with blue crayfish. However, just expect it, one day you will wake up or come home from work and one of your favorite little fishies will be missing… And you will know exactly who to blame. – The little blue critter.
Other crayfish can make good blue crayfish tank mates. However, you just have to make sure they are the same species.
Crayfish can be territorial. So it’s a very good idea to have a “hideout” or ornament in your tank for each crayfish. This can be something as simple as a piece of PVC pipe or a store bought ornament.
Personally, artificial “hideouts” that look like logs work great. They give crayfish a place to burrow. – And burrowing and hiding out will be especially important when crayfish moult.
When crayfish moult, they will become soft. – And unfortunately when this happens, they can become the target of other crayfish in the tank.