Originally Posted by ophiura
This is simply not true, I am happy to say.
There are well over 2000 species of brittlestars and a couple of dozen show up in the hobby. ONE is a known predator in the wild - the green brittlestar Ophiarachna incrassata.
I have 3 very large green brittlestars, and I can't fault them for eating anything. I lost a clown goby and lawnmower blenny - both within 24 hours of intro...died, or killed? Well, our nature prefers to accept they were healthy and killed, when they are more likely to have died.
There ARE actual cases of this species of brittlestar eating fish and shrimp, don't get me wrong. But it is not a GENERALIZATION to be made about all individuals, and all SPECIES of brittlestars.
Many species are simply not capable of doing anything of the sort. And the predation even in the green brittlestar is an individual trait. There is a RISK with anything we keep - many crabs, anemones, etc also pose a risk.
But for most other species of brittlestars, this risk is virtually non-existant. I don't know what species you are getting. I wouldn't get a green, but otherwise, I don't see an issue.
BlennyBoy: I didn't mean brittle stars in general, but my green brittle star's a hog, and as you said, he'll eat ANYTHING.