Scottyhorse
Aquarium Advice Addict
I would do one school of 12 personally. Would look cleaner. Since the fish are small, one school would look better than two small ones, but it is personal choice. I would do 3 mini moth catfish instead, they do best in groups, like Otos. Shrimp don't add anything to the bioload. I am not sure if the African Dwarf Frogs would be pushing the bioload or not. The micro fish are generally more sensitive to water quality than regular fish, so it is best to stock lightly with them. You can give it a try though.