alright lets get them out of the soil, what you have is a deficiency in nitrogen or its overferted i believe MG soil has added nutes so its possibly the soil causing your problem and you need to test your PH its a must or your plant is doomed.

do not water is more than 3-5 days after you already watered it you will drown it, give it a good quart or so of water and leave them be for 3 days