I have been having g apples over last few days with one plant where the bottom and lower leaves are turning orange . I have checked ph which was at 7 and flushed it with water as I don't think its a light burn issue I have a fecida cr600 1000w led light with full spectrum white red. Infa-red and uv. None of the other plants which are closer to the light show light burn and its not on the top leaves as shown in the pic its on lower leaves. My medium is soil and compost mix from wilko. All other plants are doing well but this one, and one I had do this before but after flushing it recovered but had really slow growth. I use bio bizz grow and bloom with budwiser amino acids, solar green power silica and shogun p and k and also doff seaweed concentrate with tnc calmag. I have rootbastic but only used that one when germinating seeds . Could this be too much P or K ?
Thanks.
Thanks.