I've got a 100 gallon with like a 25 gallon sump; currently it houses a Niger trigger, huma huma trigger, foxface, lunare wrasse, and green spot puffer (very small-and stay very small if you're not familiar with them); I just bought a Stars and stripes puffer from Tim (havent put it in yet)--Was wondering if ya'll thought my tank could support a Lionfish as well without crashing or anything; I do weekly water changes of about 15-20%--no skimmer, still looking, but not looking real hard