Hello I'm new to the hobby and I'm looking for some suggestion on how high my lights should be off the water of my 90 gallon corner reef tank. I currently have glass covers and I have the light resting on the glass. I noticed that my temperature raise a few hours after the lights come on. I have a Digital thermometer on the left side almost to the bottom of the tank and I get these readings. In the morning its around 80 degrees by the evening 80.8 On the right side I have a Digital thermometer 3" below the water line and I get readings in the morning 80.2 and in the evening 8.9 or 81.2. In my sump I get a reading of 79.9 - 80 degrees throughout the day and evening... My 300w Ehiem heater is set to 75 degrees right now and is sitting in the overflow area of the tank. I also have 2 Jebeo RW8 wave makers pushing the water around on from both sides of the tank along with my return. My light setup consist of Aquatic Life 4 lamp 48" T5 fixture 1- 10k bulb 1-12k bulb 1-Actinic 460 and 1-Antinic 420. I would like to start add some corals in the next few days but would like to make sure I have the light correctly positioned and not cook the corals... Also what's the Ideal temp for a fish and reef tank ? I see some people say 79-80 while other say 80-82.
Thanks in advance Mike
Thanks in advance Mike
