My RBTA (actually it's now two RBTA's) are driving me nuts. Everything was pretty hunky dory until my 14" diameter rbta split. Since then they are moving around their stack of rocks WAY too much. Thank god I have two stacks of rocks seperated by about 12" of open sand. Most of my sps are on the opposite stack from the rbta's and the nems have never wanted to cross the open space, if they do they are gone. SPS mean far more to me than nems. My primary issue is that 1/3 of my 180g is pretty much reserved for the nems. Keep in mind the nems are in great shape, don't require much if any food, and the perc clowns love 'em so do the greenhouse customers. In fact, nothing, gets a non-reefers attention more than a pair of clowns in a nem.
So my question is do feel that nems are worth the trouble, I am currently on the fence.