Originally Posted by ophiura
Well, this is an open question. There are loads of hitchhiker brittlestars you probably already have, but don't see much of.
I personally do not recommend "larger" brittlestars in such small tanks because of the difficulty in keeping the tank parameters constant. Fluctuations are very stressful for these animals.
As a general rule, I recommend at least 6 months maturity in a tank system before adding.
I only have about 9.6 LB of live rock, and iv NEVER seen a serpent or a brittle star befor, i look at my tank at night to see whats in there i found out that i have copepods, amphipods, and i think mysis shrimp and a lot of other cool worms. Can you list any kind of the dwarf brittles?