mattrox
Aquarium Advice Addict
20 females will keep your fish fed, especially if you have a grow out tank to put all the babies to fatten up. 30 - 40 half grown guppies would keep the Oscars well exercised!
thats what i thought at first, but it comes and goes,Ive seen females that looked like they were male, one possibility..Or maybe it was constipation..