Cant Figure Out What This Is On My Leafs..

i been haven this problem for awhile now im about 30 days into flower i have 7 plants, 4 purple arrow and 3 chronic, i keep my ph lever around 5.8-6.2 i use fox farm big bloom, tiger bloom, grow big, i use the feeding schedule for soil i use half of what it tells me to put. can someone please help me and tell me what this is and how i can correct it thanks.
 

Dr Gruber

Well-Known Member
When i used FF products I had the same problem. After the 2nd or 3rd week of flower the leaves would start doing the same yours are. Then i came across this....https://www.rollitup.org/marijuana-plant-problems/158144-never-ending-abuse-phosphorous-bloom.htmlIt it turned out that the plants didnt need that much bloom food in early flower...ever since then i dont have the problem anymore.Start by flushing your plants out really well and then start feeding again with a higher "N" food....actually if you have a nute with a balenced ratio like a 20-20-20 that would be better.Are you using FF soil?
 

Dr Gruber

Well-Known Member
yep...just flush and keep your PH where it is. I try to keep my Pro mix at 5.7 based on a very experienced promix growers advice but 6.2 is fine. not sure if you need the calmag or not..most tap water has enough in it but you never know until you test it.
 
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