I put what i would consider cheap carbon in my filter last week and ever since I have had algae covering the glass very lightly ever since, I'm trying to track down the cause and the only thing I cannot rule out is the carbon, I have read that cheap carbon can carry a lot of po4 and is this the cause. I know I'm not overfeeding the tank and I'm using rodi water,new bulbs, etc. etc. etc. Has anyone had this problem with carbon. I'm ordering reef carbon tomorrow just to have in case I need it again to clear up my water again. This has me puzzled.
I removed the carbon and changed 25 gallons of water tonight to check to see if this helps.
I removed the carbon and changed 25 gallons of water tonight to check to see if this helps.