ok so 6 months ago i got a bta. he has been walking all over the tank been pretty consistent just moves a lot. the other day befre work i seen him on the glass nice and full. i came home to a cloudy tank and no nem. he has been missing for days now. thinking he got in the wave maker. but i dont see any signs of him not a chunk of flesh or a single tentacle to be found. only a cloudy tank that cleared in a few hours time. he was about 6 or 7 inches in diameter so i find it difficult that the whole thing would have been ground up without a trace. today i moved every rock looking for it and just nothing. i checked the overflow box, the sump, the hose from the overflow to the sump. all the fish in the tank are fine my other bta is happy. any thoughts would be great