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[APD] Re: Surplus of Mollies
Scott H. asked:
> "Did you have a problem later with a surplus of mollies?
> They can be industriously reproductive."
I know they can be, and I was fairly worried at first. I figured it
couldn't be that much of a problem, though, compared to the surface
scum. As it turned out, the black mollies did have some babies, but they
weren't as industrious as I might have predicted. I also have some other
fish in there (Gouramies) which kept going after the fry, and that
helped keep their numbers down.
The two problems I had from the introduction of mollies were the
fin/tail rot which mollies seem to be famous for. As soon as the
nitrates went up, then they showed the rot problems. If I let the
nitrates slide, the fin troubles would clear up. That meant it was
difficult to keep a level of nitrates for the plants, but not too much
for the mollies. After a while I got it figured out.
The other problem came with the introduction of a different variety of
molly (my wife and kids liked the colours). Against my better judgment,
we tried mixing the mollies. I knew they would interbreed, but I didn't
think I would create a Frankenstein! I have one molly cross left which
has a gold head and a black body, and he is extremely aggressive to the
other fish. He follows them around and picks away at their slime all day
long. I need to catch him and give him to the LFS, and you know how hard
it is to catch a fish in a planted tank! (I know... I will use a trap).
As long as you stick to ONE kind of mollie, and have something else in
the tank to keep the fry population down, you should be okay. (No
guarantees, here, though.)
Ed Dumas
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