| Re: Phosphate Question
Cyano can be a real pest. Another thing that it could is a change in spectrum of your T5s. All bulbs have a usable lifetime. Yours were almost a year old when you got them from me. I was having a little cyano (it's always there) and when I changed to MH, it went away nearly completely. You may want to look into changing tubes if nothing else works. If I still had the fixture, I was scheduled to rplace them at 18 months which would be in December. Also, those were the bulbs that came with the fixture which probably were not the best.
That's about the only other thing I can think of that may be contributing to the cyano. |