It depends on what par, flow, and type of coral, imo.
Heavy sps 450 max par. Heavy flow like 50-70x turnover from power heads alone.
My peak is about 6 hours at 300 par at the top of the tank, and high flow for my sps. But every tank is different. It is safer to go lower first, then slowly increase it though.
Yea I turned it down a little bit to 8 hours peak. Acclimating for 45 days starting at 50 percent. I just mounted a bunch of sticks from frag rack. That should be slow enough over 45 days ?
Very good point. I backed it down to 8 hours peak. I just want to maximize how many hours in a day I can enjoy reef.
I am curious, where do reefs get 16 hours of sunlight?
Depending on how much light they got before, they may change color. In my experience acros usually turn green or brown in lower light. But to me, it is better than bleaching them out, or causing stn. Plus, the colors usually come back after a few months in the higher par.
Lots of places get 14-16 hours of daylight in the summer. I usually run as much light as I can without bleaching or seeing algae.
The longest day of 2022 on Great Barrier Reef - 13 hours and 03 min.
5-7 hours is my peak but will vary with each person's lighting type and needs for type and amount of coral in their tanks. SPS dominant tanks will have a higher demand whereas LPS tank will have lower needs.
I turned it down to 8 hours peak. I just really want to maximize how long I can view the tank. But tbh I need to stop adjusting my dang lights lol. I figured since it’s mostly sps I could go a little longer but 9 hours sounds long. Even 8. I had it at 7 before like you.
Wow I’m shocked. I would think that’s too long.
Very neat. I would think 10 hours peak would be too long. I probably will increase my peak time if I don’t see any issue. I’m at 8 hours now. I want to maximize my viewing time. Very similar par levels to me and I would say I’m 90 percent acro too. It has amazed me how much par torches and hammers can handle.
