[Brieninsac]

I recently starting using Algaefix too. Today was my second dose with no noticeable results so far. But from what I've read it takes 2-3 weeks to show any signs of receding. I wish the instructions addressed the effects of using GFO/Carbon and/or skimmer during treatment. So many of the posts here have anecdotal evidence of the effectiveness with or without additional preventive measures.

Until I discover otherwise I'll kill my GFO/Carbon reactor and skimmer for 24-hours after treatment.