slowjazz;738359 wrote: Those are brittles, not serpents. Serpent stars are smooth, brittles have all the brush looking things on their legs.
In the 7 months since my green serpent came out or a rock, he has grown very large. So far he has not bothered anybody or anything, so for now I just watch him. (I did see it go after a turbo snail that landed upside down. But to be fair the hermit crabs will also go after the turbos that land upside down.
Brittles tend to go after things more then serpents. If you have or want to buy pepper shrimp, small hermits, small snails or small fish, then having more then one brittle is asking for trouble.
Edit:
<> You mean like my 7 month old serpent star?

(bottom and top shot) Dude has gotten rather big and always comes out at night. I feed him once a week. (keeps him happy and my other fish alive

)