Mollies are not really passive fish. They are extremely active and hungry, can be to the point of belligerence, and if you don't have the right balance of females to males (two females per every male at least, with 3:1 being even better) they will pester the females like crazy. They can be quite overwhelming to fish that are actually passive such as dwarf gouramis and mild tetras like neons. Although every now and then you'll see a rogue dwarf gourami that reminds you that these fish are related to bettas.
Mollies are not really passive fish. They are extremely active and hungry, can be to the point of belligerence, and if you don't have the right balance of females to males (two females per every male at least, with 3:1 being even better) they will pester the females like crazy. They can be quite overwhelming to fish that are actually passive such as dwarf gouramis and mild tetras like neons. Although every now and then you'll see a rogue dwarf gourami that reminds you that these fish are related to bettas.
Better yet, take the male molly back and swap it for the females. Unless you want a tank full to overflowing with molly fry in about a month and a half.
I pull male fry out as soon as they can be identified and stick them in a Boys Dorm tank. There they indeed continue to attempt to have sex with <i>anything</i>: each other, any other fish in the tank, invertebrates, driftwood, plants and rocks. Oh, and the tank thermometer, almost forgot about that. One guy I think tried to have sex with the heater but he was thereafter seen swimming oddly and went down in the dominance heirarchy.
/am no doubt a bad person for laughing so hard at IMD's post above. Reminds me of a certain comedy routine the punchline of which is "...for the same reason you don't park your Cadillac in the coat closet."
I had two males together and they were fine (one died with a bladder problem). Now, he seems to pair up with the (male)gold ram and they are both a little territorial towards the female ram, go figure. He's harmless with everyone though. I need to teach my fish to read the internet as none of them behave like they are 'supposed' to...
Better yet, take the male molly back and swap it for the females. Unless you want a tank full to overflowing with molly fry in about a month and a half.
