ok so i have over 4+ yrs of exp in saltwater (reef only) but i'm starting a diy led light and some aquascaping for my 55 gallon tank and i want to know if i buy my leds at the brighest spectrum do i need a dimmer and how bright should leds be before they start to effect coral and fish? 2nd i also would like to know has anyone ever used mineral clay for a diy aquascape.. ideas..... please.. thanks :tongue:

