| | Re: help I can't get rid of Black Beard Algae
flourish excel is a glut dilution made by seachem which provides food for the bacteria who use it and produce co2. in a simpler sense, its an algaecide and carbon source. you can buy a bottle or make your own. please post your water params. you'll be surprised how important good water testing kits are. essential for algae fighters too. i'm suspecting too little vacuuming, not enough co2, other nutrient imbalances.