First grow here, all is going good. I was wondering why some fan leaves are getting yellow edges. I am feeding with teas. they have alf alfa pellets, kelp meal, and some bat guano in them. I first noticed the yellowing after I had been away from the plants for a week. Did a couple water only feeds to flush the soil a bit, but the problem is still advancing. Any Ideas? the top of the soil is dry on top and everything looks normal to me