leds

I've read a ton of posts, found the manufacturers specs and I still have no clue on the height for these Black Box leds I have. The specs say 6" above the tank due to the optic lenses, at 90 degrees. Original owner had them at almost 20" above the tank and lost a ton of corals. The tank is a...

Just equipped the temporary frag/grow out tank with Gen4 Pro radions yesterday. Was previously running 6 bulb T5 on the 40 long tank. Immediately I was disappointed in the level of disco ball effect from the LEDs. Going to attempt some solutions since the reduced electricity bill is the...