red light

The coraline has finally started popping up in my tank! I’m excited, BUT, unfortunately, it only appears to be growing in my chaeto reactor :eek:. I used two bottles of bottled coraline about a month ago, I figured it was overkill but I wanted the purple and pink strains, and to speed up the...

Is it ok to use Deep Red light (100%) at night for like an hour to watch fish ? do they actually see the light and will it trigger bad algae growth ?