Brittle Star Help

I got a brittle star a few weeks back and all he does is sit under a rock he never comes out from that rock

I heard they were supposed to travel around my tank and eat leftover food but he doesnt do that, hi just sits there with his tentacles extended, he responds sometimes when i feed my sun coral whos near him and i give him little bits of brine shrimp and sometimes krill and silversides but he just spits those out maybe there too big.

Is this behaivor normal?

 

i put 4 into my tank. and they did the same thing. the 2 hairy brittles i never see. the other 2 , will come out sometimes when it feeding time. but usually never fully exposed , just see their tentacles, so looks like normal behaviour romulox

 

Brittle stars are pretty cryptic, I have observed that they often come out in when the aquarium lights are off though.

 

they only come out after lights are out

 

I was just worried that he would die because he didnt seem to be eating anything but i asked on another forum and they said it was normal so im just gona let him do his thing thanks for the info