Rescued Mollies

So, not quite an emergency, but a worrisome situation. I rescued 8 short-finned dalmatian/marble mollies a month ago from a friend who's tank shattered (cup of tea too close to an old tank). He has given most of the fish away from the spare buckets he was keeping them in, and I took aboard his mollies. They are a dalmatian p. latipinna and marbled p. sphenops cross with gorgeous silver, black & white colouring, so are fine in my medium water with no salt. In fact, they are thriving. They are often seen playing, and sucking algae from the top of the tank (and expelling the bubbles, which is rather humorous) during the daytime. Occasionally I have even seen them cleaning my corys, who sit there with their fins flared, obviously enjoying the attention.

Now that you have a background, onto the issue. I did some research into them, and looked into sexing. 7 of the 8 are female...and PREGNANT. Not a major concern in and of itself, but if they all drop 50 babies each, then I might be in trouble. The local shop won't take them until they are at least 8 weeks old, preferably 10. Of course, being the stunning colour they are, if they breed well, and I can handle 350 little extra fish swimming around, I could sell them for quite a little profit - about $3-4 each.

What would be the best course of action from here on in?

Hmm, yea. I know that they can be impregnated from 4 weeks. I might chuck the fry into my Tetra tank, and if the Congo tetras nab a couple, so be it - extra protein. That should stop inbreeding too. I might be able to talk my LFS owner into taking them, he is a reasonable dude and hopefully will be able to help me out a bit. I know he loves mollies, especially unusual ones, and is short at the moment.

Compared to eggs layers, livebearers do have huge fry. They are so big they can be fed crushed up adult food rather than specialist fry food like egg layers.