Coral Problems, any thoughts/suggestions?

[Reef Pilot]

Originally Posted by Yorgi

I'm very new to this hobby in saltwater so I have no idea what GFO is? There is a Phosguard being run in the reactor as well as carbon. What is AEFW??

GFO, Granulated Ferric Oxide (iron shavings), is commonly used in reactors to bring down phosphates. Phosguard is similar, but uses aluminum instead. But they have to be refreshed regularly to work, and some flow through the material is needed, too. So you have to be sure your reactor is working properly.

AEFW, Acropora Eating Flat Worms, a terrible scourge, if you ever get those in your tank. They will attack your Acros, and are very difficult to eradicate. To prevent infestation by these coral pests, and others, be sure to dip your corals before adding them to your display tank.

Lots of discussion here on these topics, if you do a search.