Originally posted by Jeepboy
I know this is a saltwater site, but figured many had freshwater tanks also. I have a 10g freshwater tank that is having a green algea problem. The water is even colored. All the water parameters check out ok and I've been doing water changes also. Does anyone have any advice on getting it under control? If not anyone know of a good freshwater site similar to this site?
Thanks
the reason you have green water and algae is because you have not established plant life to complete the nitrogen cycle. The algae is there because it is the plant life completing the nitrogen cycle.
Add plant life, get it established, and the algae/green water will be thing of the past.
When estabishing a FW tank I first add plants and then let the system alone for a week. Under anywhere near normal conditions, there is never an algae problem. After a few months of operation it is possible to get some algae which is easily controlled by lighting and reduced feeding. And by using that method (called the natural balanced or leiden method) filters, air stone, water changes and the like are optional. Even direct sun light does not produce algae when the plants are effective.