Hello check these out do you think it could be bleaching ?no, if you see yellow, you see yellow. What is it telling you? More light, more nutrition needs. Increase the nutes. Listen to your plants.
i am using air condition during lights on now during the lights out i will keep it on . we had some high humiditythe last 2 days and could be what might have triggered it. what should i do moreI don't think that round spot has anything to do with heat... it looks fungal to me and isolated. The brown leaf edges say potassium deficiency to me.
So should I add another fan then?more fan action? why the deficiency though? Usually we find it has to do with pH rather than a lack of nutes... tell me what is happening.