Algae

[DEAD_BY_DAWN]

Have you tested the Safeway RO water for ammonia, nitrite, nitrate and phosphate? Any of these substances in the water could be part of the problem

this stuff is totally a waste of money i had far better results from tap water as soon as i stopped useing there R.O water all my algae problems went away in two weeks,try there distilled water a little more expensive but works great.