New Fry in my weird tank

[renadia]

I found 4 miniatures swimming fish's in the 10 gal yesterday. I still have a very fat female Guppy and 2 fat female Cherry Barbs. So I don't know whose they are 
I put them in the 75 gal in a breeder box. I now have to do some searching to check if the Barbs and Guppies have live fry. There are bunches of eggs in the tank in corners and they are all slimy when I tried to move some I think they might be from the snails.

This tank is weird the water when I test it is great, I had transfered the Betta about 3 weeks ago and he was there Thursday night and when I looked Saturday (I quickly fed them Friday) all trace of him had disappeared. This has happened on and off with all the fish, some survive and thrive and other dies and disapeare.  Don't know and will ever know

[beowulf]

More then likely they are guppy fry as they are live bearers.