Using Kent Phosphate Sponge

[michika]

I think I swapped it every 4 days. I did a bunch of reading up on it on RC at the time.

My GHA solution, after trying at least 15 other ways to deal with it, was a) long spine urchin, b) manual removal (this got old quick), c) just leaving it. My rocks were leaching phosphate which was feeding the GHA. I ended up just getting fed up with it, and by not doing anything the phosphates finishing leaching out of the rocks and that was it.

You can search for the thread, I think it was called something along the lines of doing battle with GHA.