sps turning green. help

[Chris82]

Not sure if they are full spectrum. It says they are Cree LEDs on the unit but.... The water is ro di and tds meter says 0 or 1
I will get an iron test and check that.
What are your thoughts about adding a couple t5 ho bulbs and would you. Go actinic and white or both actinic?

[iceman86]

How long have you had these corals under this light? What colour are these corals?

[gregzz4]

Could be Iron content in your water ...

Some of my corals started to shade towards the greener side after I switched to a supposed HiCap GFO which is brown, rather than the BRS HiCap stuff which is black

[Chris82]

Corals have been in tank anywhere from6weeks to 12weeks . I just started into the spa workld about four months ago.
Corals are blue,purples mad a yellow one.

[iceman86]

Originally Posted by Chris82

Corals have been in tank anywhere from6weeks to 12weeks . I just started into the spa workld about four months ago.
Corals are blue,purples mad a yellow one.

Your light is fine and as long as your getting enough light to them you wont have issues. Lots of beautiful sps tanks dont run full spectrum. I would try to lower those nitrates. My blues turn green when I let my nitrates get that high so i like to keep them at around 2. A lot of people run sps tanks with 10 nitrate just fine but every tank is different. Unless you added something that would add iron to your tank, I wouldnt bother testing for it.

[RomaFan]

Alk, Mag is a bit to low and nitrates are to high.

[Aquattro]

Originally Posted by RomaFan

Alk, Mag is a bit to low and nitrates are to high.

Both are higher than my levels, I don't have corals turning green. Well, except the green ones

[Ron99]

Blue LEDs can cause the green pigments in the corals to fluoresce and give a green glow.