Polyp extension related to activated carbon?

[Stones]

Originally Posted by Myka

I get the best PE when I don't run carbon, but when I run lots of RowaPhos.

This is very similar to what I've seen in regards to my milleporas. I was just hoping that I wasn't the only one seeing such a phenomenon in their tanks. I used to run phosphate media in my reactor, but since I've never had a phosphate problem I switched it out to carbon instead. Looks like I'll be swapping the carbon back for phos media and hope PE improves.