The Planted Tank Forum - View Single Post - Random algae bloom in 8 month old tank
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Old 02-10-2013, 07:49 PM   #6
Darkblade48
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Quote:
Originally Posted by TheGiantDwarfShrimp View Post
Yep all parameters were 0 including nitrates. I removed all the water lettuce and extra naja grass that had been going crazy in the back of the tank. If I keep nitrates up should the algae go away? I tried removing it but there is just so much.
One of the reasons that BGA can form is low nitrates; cyanobacteria is quite efficient at nitrogen fixation, so can do well even in low nitrate conditions. By bumping up your nitrates, your plants should do well again, well enough to outcompete the algae for nutrients.

In the interim, you should manually remove as much BGA as you can, and then try an erythromycin treatment if necessary. If you are diligent about your manual removal (daily basis), then you may not need the antibiotic.
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