my sps are slowly bleaching in my 5g nano everything is testing good i have a 75w viper M.H. about 16 inches above it. do you think i need to raise it higher or have it on for less time its on for like 10 hours a day.
Def. think 10 hours is too long... 8 is ideal... You can slowly cut it back and see if they respond.. I would say yes...
