Is it possible that my Emerald Mithrax ate the poor thing? Just got them yesterday, and todaycan only find one. Hes not in overflow, is about 1-1.25 inches and the mithrax is about 1.5-2 inches across. Anyone heard of Mithrax eating a fish? Also, is it common for clowns to hide when first in tank? The other one is out and about.