I took some scissors and cut the cups a bit, so now the soil is level with the rims of the cup. ( Can't believe i didnt think about this earlier... ) By cutting the cups in almost half, it cut down on the size they took up inside the box, now they all have even space and are roughly the same distance from the light.I agree looks like overwatering, I would have filled the cups with more soil so as the plant would stand above the rim, seems to me as is, the rim is interfering with proper air circulation.