Page 5 of the 75 gallon saltwater tank.
November - After doing lots and lts of water changes and really seeing no improvement in the SPS, I decided it was time to make a salt switch. I decided to try Red Sea Coral Pro. Pricier than the Reef Crystals I was using, but there is definitely
quality issues with Reed Crystals. I made the switch back in August, been doing no less than 10 gallon changes weekly, religiously. I can already see the difference in the SPS. One that I almost lost had a brown appearance, then new growth with popping color.
I also noticed my Reef Brite blue leds were starting to die off. I though about getting a new one or even an XHO, but ended up deciding to give DIY a try. I got the Rapid LED (http://www.rapidled.com/24-led-actinic-supplement-kit/). they're 3 watt LEDs, should be pretty bright. The build process was straight forward. The only issues I had was - how am I going to mount in my canopy and how am I going to cool it. I ordered a few 40mm fans from amazon for cooling and got some 3" stainless screws and nuts from Home Depot. I drilled the heatsink to matchup holes in my light board for mounting. I drilled larger holes for the fans to blow straight down onto the heatsink. I made a splash shield from a 48" peice of acrylic and mounted with some 1/2" risers, which went onto the same screws I mounted the heatsink to the light board in the canopy. Let me tell you - these things are BRIGHT!. The pics below are from the Rapid LED kit blue leds only (wb adjusted on camera).