Sorry I guess that I did spell that wrong... Pleco or plecostomus.  He is about 4 1/2 inchs long.  Looks to be rather healthy to me.  I do feed him the algea waffers because I knew that with what I did to the tank there would be nothing in there for him to eat and I thought it might promote growth in the tank too.

As for the Biozyme I do not know how old it is.  It came with all the tank stuff that I got with the 29 gallon.  I looked it up on the net to see what was.  The container is still very full and it looks to be new.
Web site:  http://www.aq-products.com/Catalog/Water%20Treatments/Biozyme.htm

I hope that this is all the info that you asked for.

When my tanks were overcrowded I used to skip feeding them every Sunday with no ill effects. That was easier to do if I was going to be away at the normal feed time so I didn't feel too guilty.

Someone correct me if I'm wrong but as unc says that is probably a bacteria bloom which in itself is not dangerous to the fish BUT if all those bacteria die off quickly it can cause another increase in ammonia (ahh the joys of fishkeeping). That won't be so much of a problem to you now you have the test kits and can watch for it though.

As for which tank to keep which fish in, I would be inclined to keep the females in the bigger tank as they generally grow larger than the males. The males seem less likely to eat fry (probably not as hungry from being pregnant all the time) so I'd be putting any fry over into the male tank at about a week of age providing there is cover for them. By the time they are a week old the all adults seem to give up chasing them. The other reason for doing this is that if you are a little late at separating the sexes of the fry it is not such a bad thing if the males get one young female pregnant compared to one young male in the female tank getting them all pregnant after all your efforts.