Actinic Lighting and Hair Algae

[GMGQ]

That doesnt tell me actinics are not the problem. You're still running another source of light. The equation is:

Nutrients + Light = Algae

Whether it's actinics or another source, any light still plays a role in the growth of algae. Now if you had NO LIGHTS yet still had hair algae, then you can say 'lights' are not the problem. It's like when people cook their LR. No light = No algae.

With any source of algae, yes, you want to tackle the root source of the problem -- which are Nutrients.

But in the short term, if he cuts back on the lighting period, the hair algae should slow down as well.

Originally Posted by TheReefGeek

Heck im not running actinics and I have hair algae, and when I did run actinics I had zero hair algae, so what does that tell ya? That nutrients are the problem, not the actinics.