High phosphates-using reactor and can't get them down

[intarsiabox]

Originally Posted by LeanneP

No I don't feed the anenomes. I have a good skimmer and I didn't think that wc really made a difference with phosphates only nitrates. My tank is full of coral so I can't really blast off the rocks too much any more.

It really depends on how you do your water changes. If you are just sucking water out of the the middle of your tank rather than getting into the sand and debris stuck in the rocks then you will have little success in reducing phosphate levels with water changes. The water change itself does not reduce phosphates but removal of the organic material causing the phosphates does.