My tank is 40 Breeder, Light hang 9" above water. So I set this up on Friday, the new Radion Pro. Shallow water Mod, ran at 50%, and accumulation mode set for 6 Week. So let it ran as test day yesterday, which was pretty cool. But, one of my coral bleach overnight....... Other's are doing fine..... is 50% too high? turn down to 35 or 45%?