I currently use a diy led fixture and i'm not sure if it's enough light. My birds nest was doing great for a few months but then all of a sudden it is part bleached, part brown and dropping some tissue. My purple bonsai acro also lost it's purple color and turned brown. And to add to that, my soft corals weren't opening up much until I lifted the fixture up. So i'm not sure if it's too much light, too little light or just high alk which was 10 last time I tested.
Some guy on another forum told me that I don't have enough light for the corals so I borrowed a par meter so I will be testing the light above my corals and if it's not enough light I will def. be ordering the reefbreeders this week.