The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
Test the water in your 29gal. Clamped fins is often a sign that water conditions are not optimal, so that would be the first thing to do. What are your plans for the 21 babies? I think you will be rather overstocked to put them in the 29, and that is probably why they are in the 10gal, no doubt.
... I was not going to put the 21 fish in my 29 gal... obviously yes it would be very overstocked. They are in the 10 gal because that is my QT where the mickey mouse platy had the babies. The babies are in a floating box. My question is what to do with the blue platy.