Join Date: Mar 2011
Location: Oregon State Beavers!
Cyanobacteria...aka, blue-green algae. It is not normal, nor is it desirable. However, it is relatively easy to remove most times. It occurs it areas that are nitrogen deficient, so increasing dosing levels of nitrate may help. Also, increase water circulation as it tends to develop in areas of stagnant water. You can manually remove it and adjust these parameters and that can often get rid of it if it isn't too bad. However, if that doesn't work, simply use erythromycin meds and that will kill it off pretty effectively.
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