I agree with others here. At the moment I have a W/C pair of Laguna Dolores Zonatum with fry, they are an established pair. When the fry were free swimming I pulled some to a separate tank to grow on. They are fed twice daily with frozen baby brine shrimp, with a 20% water change every 2 days. The rest are left with the parents. Apart from the Hakari pellets I feed the parents the tank does not receive any other food. The parents will fan the substrate and the fry feed off the detris stirred up, plus off the sponge filters. I have to say the fry in the tank are doing every bit as well as the fry in the separate tank.