Hi is there a curtain time you should have your main lights on?
I have a 29g nano cube with 150w mh
light I currently have it on for 12 hours. Is this to long corals, gsp, duncans, xania polyps all doing well but do get diatoms but the tank has only been running 2 months.
Can I reduce the light time to try and reduce diatoms plus also some green algae on rocks without affecting my corals?
Is it just trial and error or can it be worked out by size of tank and lighting power cheers for any help