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Old 05-11-2008, 04:36 AM   #3 (permalink)
BiscuitSlayer
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Default Re: GSA (Green Spot Algae)

Dosing phosphate will help you dramatically.

I don't agree with thefishmanlives with regards to plants outcompeting algae for nutrients. I tend to think that algae usually surfaces as an indication to some type of inballance.

GSA = Low phosphates
GDA = Low CO2
BBA = Low CO2
Staghorn = Low CO2
Hair = Low CO2 (possibly too much iron in the tank)
BGA = Low Nitrates, bad water circulation, introduced from other source

Dosing excell generally will not help with GSA. Dosing phosphates will though. You do have a fairly signifigant amount of light over your tank. You should be dosing macro ferts as well as micros, and you probably could use some CO2 injection as thefishmanlives stated. I do agree with him that pressurized is the way to go.
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