What kind of bulbs??? how old??? This usually happens whe u use 10K. If Parameters are good it may be your bulbs.
Are you saying 10k bulbs will cause some corals to be brown?
What kind of bulbs??? how old??? This usually happens whe u use 10K. If Parameters are good it may be your bulbs.
I had the same problem a while ago. I was running 10k and my birdsnest was brown. I changed to 14k and in 2-3 weeks they turned pink.