tucker
Member
I have a twenty gallon tall tank with a marineland reef capable 24-36" LED light as well as one 15 watt 18" T8 that has a blue tone to it like an acentic light. I have recently developed a hair algae problem and have done everything to try to get rid of it but cant. All my levels are at or near zero. I have previously had these two light on 10 hours a day. What is the minimum amount of time I can have these on without hurting my corals and such. Just today I bought a separate timer. I reset the main LED light to be on for 7 hours and the T8 for 9 hours. One hour before the LED comes on and stays on for one hour after the LED shuts off. Is this enough light time for my corals? Any suggestions to controlling/getting rid of this Hair algae?