I have a heck of a time keeping my white gravel white. The problem appears to be my water that goes into the tank - it is a 2.0-2.5 in phosphate out of the tap. For the longest time, I had severe diatom/brown algae problems. I added a Phos-Absorb pad, increased my lighting and put it on a timer, and added plants with moderate success. The diatoms kept returning, even after cleaning and after having this tank set up for a year. I added a BN and he has taken care of all of the diatoms on my rocks and decor to great success. The problem is my white gravel substrate. It keeps getting brown algae growth down low where the BN can't get to it. It gets to be a pain trying to get to all the nooks and crannies to get it clean. Is there anything else that I am missing? I am to a point that I am considering switching the substrate to brown sand or river rock to mask the unsightlyness.
BTW - ammonia and nitrites are 0, nitrates are 10-20, ph of 8 and phosphate at 1.0 today, weekly 50% water change, Emperor 400 hob and Rena XP2 canister for filtration. Lights are on about 8 hours per day.
BTW - ammonia and nitrites are 0, nitrates are 10-20, ph of 8 and phosphate at 1.0 today, weekly 50% water change, Emperor 400 hob and Rena XP2 canister for filtration. Lights are on about 8 hours per day.