are you suggesting laying it flat on the top so if he jumps up there he wont be able to get back to water? but as of right now hes mia again, looked all thru my system and could not find him only place i didnt check is the out line water tubes to my sump, so might be replacing him soon. Also need to good solution to getting some amonia out, are there chemicals that i can get i think i have see something at my local store that might get amonia out. but let me know what you think.