I have 1 tank with a mossball, 4 comet goldfish, 1 common goldfish, 2 golden dojo loach, 1 peppered Cory catfish, and 1 rainbow shark. I am also trying to grow Mossballs in a separate 1 gallon tank. Feeding it plant nutrients every 3 days. It is also agitated with a small 5 gallon air pump and constant light. I have a another small mossball growing in a 1 pint jar in my window. Feed on same schedule as the other trying to find out which work better for growing them.
I have 3 tanks so far not sure how many to go at least 2 more in the works. Man this is addicting.