Wow it's hard to believe they grew that fast. That's amazing.
Honestly, I thought livebearers were fast.
But, these are not at all being treated like livebearers either lol I don't separate those fry. They just eat what the larger fish don't. Not to say they don't get fed live food etc... too. They just don't get high protein foods multiple times a day.
The Bettas get frozen bloodworms twice daily. Live mosquito larvae, daphnia, cyclopods, etc... almost daily. They get live food daily, but there might not be enough for everyone to have a meal. Depends on the mosquitoes lol
Once I move the Endlers into the outdoor tubs, they will grow faster as they will have access to the food the Bettas were eating