I hear you on losing your fish. I lost everything I had in my 150 do to my Dog faced Puffer dying in the move. Before I could do anything about it he had released his poison into the water and Killed everything I had. I have begun to rebuild and have sworn off the Puffers. I have gotten a little SFE it is 8 inches long and loves to be hand fed. Now if I can teach it that my fingers are NOT its Sliversides.