greenalgae

I’ve set up a new 25g tank and I’m going through the dirty stage. Got like this brown algae first thought it was diatoms however when I turned my LED to a more higher whites I’ve noticed that the algae looks green? Is this still diatoms? Picture is algae under whites, looks brown under blues. ⬇️⬇️

So my tank has had I think 2 diatom blooms. I have green algea now. I am thinking about getting a small protein skimmer. 40 gallon tank. All live rock and live sand. Any thoughts on a small protein skimmer? Does the new green algea look like it's getting out of control? The Duncan coral is...

I have always been under the impression that the blue "reef" lights do not make algae grow. Is this true or not? I have always had issues with green algae in my 14 nano cube. I only use 5 hours of white light a day--both the white light and the light blue light. I use 8 hours of reef light. This...