Its been 4 days since they were transplanted into solo cups. The two seedlings with the biggest leaves are drooping and some are showing some yellowing on just the tips or the whole leaf. Another one is showing some dark red coloration on half the leaf. One plant looks like it's done for, but I think I touched it with the light bulb for a second, or left some water droplets on it, and it got burned. Overall I would say the most of them still look healthy. Could the yellowing be from the transplanting or could it be from nutrient deficiency since the soil used was old used up miracle grow mixed with cheap soil from walmart??