My dark angel plant is in week 3 in a 5 gallon DWC bubbler bucket. The growth has slowed way down and it seems stunted. The leaves are wrinkled and there are discoloration on them. White or light Brownish patches. Compared to my other plants this one is way way behind. PH is 6.0 temp is between 70 and 80 and humidity between 50 and 60. Using a mars hydro 300 light. In a grow tent. All plants receive flora micro, gro, bloom, calmag and root enhancer. Any ideas what I am doing wrong here?