I'm looking for a little guidance on a build I'm doing.* The tank is a Red Sea Reefer 525XL.* 59" long x 22.6" wide x 22" high.* My plan is to do a halide system with RB led supplement.* My plan is 2 150 HQI 10k bulbs in Helios' reflectors.* The Halides will run of m81 ballasts.* The supplemental leds will be 10 luxeon RB running at 1000ma and 3 Semileds Hyperviolet 3.0 running at 700ma per halide.* This will make a total system of 30 RB leds and 9 hyper violet
The 10k 150's will be more than enough light.
I am will be keeping sps, lps and a clam.* I am going with a 150w halide over 250 because of heat issues.* I don't want to have to run a chiller and the 150 will put off much less heat.* I feel like an M81 ballast vs a 250 electronic ballast will be pretty close in comparison minus the heat output.*
*
Could I get away with only 2 halides?* I currently have on 150 halide on an m81 ballast with a Helios reflector on a 60 (24x24x24) cube and the leds are turned down to 50%.* The light grows coral like mad and has great color.* I don't have dead spots or extreme hot spots.* The light seems to fall off quickly outside of the tank which makes me believe I may end up with dark spots on the ends (I'm ok with this) and in the middle (I'm not ok with this) on a 59inch tank.
*
Are there any electronic ballasts that can match up with the M81 ballast?* I am also considering a Lumen Bright Mini reflectors.* Anyone use both the Helios and lumenbright mini.* I am worried that the mini might throw the light around too much, including out of the tank. I might have to pick up a lumen bright mini and experiment on the 60 gallon.*
* both of your reflectors are a spotlight design. The Helios is less of a spotlight than the LumenBrite, but trying to cover 59" with two of either is asking more than they will be able to do. There are no electronic ballasts that match up to the M81. If it were me, I would get in touch with Hamilton and see what he has that will work without being a spotlight. The old LumenArc III Mini did decent at 30" in my testing and Hamilton used to have one that matched up to it.
Critique my design, give me your opinion, let me have it!**