Well as most of you know i had guppy fry that are about 7-8-9 month old! well i added all 10 babys into the 20 gallon with my "2 gorumis,5zebra danios, cat fish, alge eater, and frog," well i just notist ONE of the guppys is fat and is much bigger than the other guppys....... she has a gravid...