I'm planning a quarantine tank. Invert and coral only. How do you maintain water quality? Are water changes the only choice? If so, I may design an auto water change system or maybe a constant water change system.
Keith, we picked up these small Duetto filters specifically for QT tanks. Allows you to incorporate biological, chemical (carbon), & mechanical filtration in one small filter. The flow isn't a large turnover. If you're running any copper or chemicals, you can remove the carbon. Just a thought for a small QT.