My rainbow fish is not very active. He is always hiding because of my tiger barbs. But he is not a aggressive fish he is actually a smart and well compatible fish. When the food drops to the floor he zooms out of his hiding spot and gets the food. Right now he is with 5 tiger barbs, 5 zebra danios, and 3 black mollies. He is not a treat but is a hider. But if you want this fish have ton of hiding places.
December 28, 2014
Awesome fish but very territorial
I've had him for only about two weeks but so far he's my favorite fish I've ever had! He isn't a bully or aggressive he is just territorial. If another fish enters his cave he will chase them off but he won't hurt them or go after them. Overall an awesome beautiful fish!
July 11, 2014
We have a 29 gallon tank and added a rainbow shark. I am not sure if we got lucky or if they are truly not as aggressive as lead to believe, but I have yet to see ours picking on other fish or chasing them. Ours sticks mostly to the bottom, although sometimes he swims mid-level. The biggest thing is that they really do like to hide. We have an artificial tree root in our tank and could not figure out where our shark was disappearing to until we got a flashlight and shined it in the hole in the root and there he was swimming around inside it! I knew they liked to hide, but I just wish he came out a bit more, however it is fun when we do see him out and about!
March 17, 2014
One of the greatest fishes I've seen
This fish is awesome. Period.
February 4, 2014