My tank is 67x36x30 deep. Roughly 315 gallons.
Primarily SPS tank. The tank will be running for 2 years March 2025. Roughly 1y 7m to date.
I am using 6x reefi 2.1 with 4x 54 watt t5. It's been running like this for about 6 months. Previously it was 8x hydra 32hd.
The hydras simply did not have the "punch" to get good light 30 inches down. They had a par of around 150 on the sand on an apogee meter.
The reefi are closer to 350 at the same depth. They are peaking at 155 watts but have the capacity of 300watts per unit.
The hydras were capable of more light when they were overdriven but the fans were so loud. So I decided to switch them out. They are fine for a more shallow tank. I have three of them over my frag tank. 12 inches deep.
Primarily SPS tank. The tank will be running for 2 years March 2025. Roughly 1y 7m to date.
I am using 6x reefi 2.1 with 4x 54 watt t5. It's been running like this for about 6 months. Previously it was 8x hydra 32hd.
The hydras simply did not have the "punch" to get good light 30 inches down. They had a par of around 150 on the sand on an apogee meter.
The reefi are closer to 350 at the same depth. They are peaking at 155 watts but have the capacity of 300watts per unit.
The hydras were capable of more light when they were overdriven but the fans were so loud. So I decided to switch them out. They are fine for a more shallow tank. I have three of them over my frag tank. 12 inches deep.
Last edited: