Hey guys having a gha problem I've tried almost everything it's not super bad but enough to be an eye sore. Finally got phosphate down to 0 with gfo HC nitrates are 10. I've noticed a lot of sentiment on rock when I clean off the GHA could my problem ultimately be caused by flow? I'm running a gyre 3k on back glass and two jebao pp15 one on each side. Anyone have any thoughts or comments it would be appreciated.
