I ran into someone at a nursery that had a hair algae problem in his
pond. He was wanting to know how to control it.

I did not have a clue for such a large outside body of water so I sent
him to one of my favorite aquarium stores that helped me when I was
having trouble.

Now I've noticed a little hair algae in my tank. I've got SAE and Otts
working hard. I'm running 2 55watt lights on a 65 gallon freshwater
tank. My nitrate is running between 10-5 ppm.