hey guys, i did ghave big cichlids but have went tropical untill i get a bigger tank.i have all livebearers and one clown loach.is he a killer?i have had several mollies and guppies dead.i do also have a betta but do not think he is the culprit.he just lays on the bottom for the most part.he kill my dwarf clawed frog also.i do beleive its the loach, he hasnt taken care of the snails, but he sure kills fish...i think.any input?