No sooner do I get the pita nano straightened out do the diatoms start in the 90G. I must say I expected it since I added sand, and the nitrates were going up. Been changing water and testing like mad but the diatoms are so ugly!!! Will they really go away on their own? Should I keep sweeping them off the rocks? How do I keep the hair algae from coming next? Got a touch of cyano on one rock now too. Ugh!