Originally Posted by NatureFish
Do zoas need to be fed? And if so what do I feed them? Do they need filters if they are kept in my 10g?
The numbers of corals that actually need to be fed are few and far between. Some can benefit from feedings but most get all the nutrients that they need from light. The non photo synthetic corals tend to be a bit more difficult to keep alive as they need regular feedings. So no, zoas don't need food. I've never actually managed to get mine to eat either. However, palythoas have a strong feeding response.
The live rock works as a filter but they will still need some sort of powerhead for flow.