Aquatic Plant Central - View Single Post - What is the Best Way to Defeat Green Dust Algae?

Marilyn1998 · 11-03-2006, 12:09 PM

I have a slight case of GDA in a beltlike fashion on the two sides and back of my tank at plant level. (about 12").
I dont know what causes it as my lights are 1.5WPG for 10 hours, my nitrAtes are 20-25, and my phospates are 5.0.
I have decided to let it go for 3 weeks. I am in day 8, and the thickest areas have gone from green to brown. The rest of the glass now is showing dusty green. So I must have had more than originally thought. Maybe that is why it never goes away??
I will be keeping an eye on this thread for sure!!

11-03-2006, 12:09 PM	#16 (permalink)
Marilyn1998 Member Join Date: Sep 2006 Location: Commerce, Michigan Posts: 70 iTrader Ratings: 0 Plant Points: 6790	I have a slight case of GDA in a beltlike fashion on the two sides and back of my tank at plant level. (about 12"). I dont know what causes it as my lights are 1.5WPG for 10 hours, my nitrAtes are 20-25, and my phospates are 5.0. I have decided to let it go for 3 weeks. I am in day 8, and the thickest areas have gone from green to brown. The rest of the glass now is showing dusty green. So I must have had more than originally thought. Maybe that is why it never goes away?? I will be keeping an eye on this thread for sure!!