what fish are safe with them if any. there is one sitting at the lfs that has been there forever and i want to get him out...looks misserable...if there not safe with anything ill set up the 55g i have sitting in the spare room.
It should be fine as long as none of the fish/inverts can fit in its mouth. Snowflake eels are peaceful, but if you don't feed it enough, it WILL try to catch things that it can swallow.