I found the wierdest thing in my fish tank, Im not sure what it is but it looks like some sort of a mucous sac full of eggs, unfortunately may oscar tore it open and ate the contents so ill never know what was in it , Is that how convicts lay eggs? im not really sure anyything about it but i know i have a femal convict and nothing else but an oscar, silver dollar , gouramis and a pleco in the tank. Can a convicts breed with any of them?