At 3 months you should of had 25% coralline coverage. Add one cap ful of Purple Up per day, use only RO/DI water if possible, and Use a new 150g bag of Phos remover every 30 days. If you use a canister filter like a magnum it will work better and you can add 1 bag of Chemi-Pure Carbon. That will help with coralline dramatically.
Make sure you test for ALK and Ca so That you have the proper levels.
Tank looks very nice. A yellow or green leather would look nice.
Make sure you test for ALK and Ca so That you have the proper levels.
Tank looks very nice. A yellow or green leather would look nice.