I have the same problem with this annoying hair algae. I was told
that it is due to a high level of phosphates in the water. My local
saltwater fish store recommended that I buy some phosphate reducer
and that will help stop the growth of the algae. He also said using R.O.
water would work and that once you use R.O. water, you'll never go
back. Guess I'll try it.
![Confused :confused: :confused:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)