Is 30 gallons really to small for a 4 inch lmb? In my opinion I would have kept it in there for a few good months till it hit the 6-8 inch mark. Also, you could ask me if you have any lmb Qs, I've kept them for a while. And though I don't take the best care of them due to my low budget, I try my best. Better yet, just ask Jridge. 
