I'm expecting some guppy fry and so I built this! I'll be putting the female in the top section and then when she gives birth the fry fall out the bottom into the nursery tank. Well, I used a margarine(butter) container, some scoobi stings (rather than glue), some mesh, salad container lid, and some other bot of plastic which used to contain food, oh and a coat hanger Well here it is... A window at the front... I threaded the scoobi strings in instead of glueing it... Ok so the female sits in part 1, the fry falls through part 2 and into part 3, if the female manages to get through part 2, there is another few scoobi strings at the bottom part 4 so she can't get out into the tank where the fry would have fallen into... Make sense?! Well, that's it! I've never had guppy fry before so do you guys think it will work? Thanks!