sounds like todd? add 21 big clams:biggrin:

Not an option. Only tank available.

Yes, it's Todd's tank

Nothing seems to help the crap leaking from my rock. Running two different kinds of gfo

Though it's only available tank could he not use a few totes to keep coral in while dealing with issue. Leaching from rock it will take a while to get out and I imagine going to be a algea bloom

What's your nitrate at? If you are nitrate limited, try dosing amino acid to raise the nitrate level to help biologically remove the phosphate. If I'm not mistaken you are running Zeovit, so that should bring the level down fairly quickly.

I used ammonia and sugar to quickly remove phosphate from my rocks before I set up my tank. It worked amazing.

Lanthanum chloride will be the fastest and cheapest way to reduce phosphates. Do a slow drip into a filter sock to catch precipitates so they won't bother any livestock. Don't reduce phosphates by more than 0.1ppm per day and you should be at a manageable level within a month. There are many posts about using lanthanum on RC, do a search for more information.

Rob, not my tank (fortunately!). The NO3 is about 25 or 30ppm. Not really limiting :) This is why you don't stock so many fish in a tank!

This is the cheapest/fastest method but you have to remember that you are removing calcium with phosphate.