hello, I am on my first grow and I am having some trouble. The bottom leaves of my plant is getting yellow and brown and some have started falling off I cannot figure out why. The top looks great and it is still growing, its just the bottom leaves. I stated it as a seed in some seed starter and transplanted it to a 1 gallon in a mix of fox farms happy frog/ocean forest. When it started, I thought it mightbe a magnesium deficiency so I flushed it with epsom salt and it did nothing. Then u realized it was root bound so about a week ago I transplanted it to a five gallon bucket with the same soil mix with added perlite and dolomite lime, however they are still getting worse. What could it be? I have another plant I treated exactly the same other than I started it a few weeks later and it looks excellent. They're under a 600 watt hps dimmed down to 75% in a 3x3 tent. The temp NEVER gets over 85 and very rarely gets that close and the humidity stays 45-55. I also cannot find any spider mites. Runoff ph is 6-7ish
make sure your ph is good and also if its your lower fan leaves only, make sire its getting the proper nutrients because it will take the N P K and give it from the lower leaves to the new growth ,use ro water or distilled water only
my ph was low but it's good now in the new soil. I transplanted a week ago so it should not be short of npk, it's in fox farms and everyone says it's good without nutrients for a few weeks, and I have been using ro filtered water, perhaps the filters need replaced though. It is only lower leaves.
a burn would get the top leaves though too wouldn't it? And I've been letting it dry out, I didn't add perlite to the 1 gallon pot though so it is possible. It also started before I transplanted it and I only fed once at half strength in the 1 gallon after it had already started yellowing, it continued to get worse but it didn't cause it to suddenly get terribly worse