Running only Blue lights

[BantyRooster97]

So I've been trying to get my nutrients up in my tank and because of this I have a small bit of GHA starting. If I turn my white lights off and run just the blues & Mixed (Onyx LED) will this help? I've read the GHA likes the white light spectrum. Will it hurt any of the coral? (SPS, LPS. nems & zoas)
thx

 

[Havoks]

How strong where you using your whites?

 

[BantyRooster97]

Blues & mixed are up to 60% whites only 40%

 

[saltyfilmfolks]

You'll lose par lowing the "white". Depending on the specific manufacturer "white" and "blue" may contain different amounts of different spectrum. For example on a kessil it wont help at all.
Your best to use a tooth brush and up the clean up crew IMO.

 

[mtraylor]

whats wrong with your nutrient level that you have to increase it?