Hey it's been a while since I've posted but it's good to be back! Anyways, my grandma has her 10g going with real rocks, 5 Java Ferns, Top Fin 10 Power Filter, and a 20g Sponge Filter. Right now the only fish she has is a trio of otos which are doing well. The tank is cycled with a pH of 8.2, a Gh of 20, and and a Kh of 16. She wants to get 1 male betta and 3 female bettas. Any ideas on how to make this work? Also, she won't be trying to breed them.