its a nano tank, we didnt know the anenome was there when we got the live rock just so u know we didnt put himin there hoping he'ld stay forever. it's a 5.5g with 5-6lbs figi lr 5 lb sand, 2 turbo snails, a blue legged hermit, a crimson crab, a coral banded shrimp and a small oscellariiuos clown. the params are good. 0 ammonia, 0 nitrite, and always below 20 nitrate. we didnt buy any featherdusters or anything, our tank is really rather small. though sponge came on the rock as well as a couple majano anenomes, and an apastasia
there is a what i think maybe a micro brittle starfish that only ever sticks his arms out of the hole he's in and the usual tunicates and feather dusters that come on the lr. the tank has alot of stomettela varia too and some bristle worms. i prob will have to do something about the coral banded, i don't want him hurting my fish which apparently they sometimes do.