IchthyGuy

I recently discussed a tank installation where the owner was going to do continuous water change. He was going to use mechanical and chemical filtration, then UV microbial exposure, then through a heater, and deliver the water directly to the tank. The overflow was directed to a drain. I questioned the flow rate and was told about 1 GPM. Seems outrageously expensive and wasteful to me. Has anyone experienced anything like this before and does it work?

I understand that one of the best foods for new fry are brine shrimp. I am trying to keep adults and fry together, giving the young plenty of cover. It seems that feeding a live food in the tank would teach the adults to go after anything swimming, including the fry. Am I missing something? Need to hear from those who keep all ages in the same tank.