I have a dwarf lion reef, your only concern will be shrimp and any fish small enough for them to eat. Feeding a new arrival can be a concern, so if you are keeping a community tank and not feeding live, qt and get them eating dead food(not 100% guaranteed); they will usually come in eating live food only. Mine are rescues and I feed my tank live, my zebra and fuzzy eats dead well, my fu couldn't sustain on dead only, and my antennata won't touch dead. I have 4 in a 90 and they are very friendly so cleaning is an adventure, Ive been brushed on the arm and have to swat them away sometimes.