Nutrient Lockout

truth is FF is poorly balanced. find someone that doens't burn the shit out of their plants with that fertilizer and follow what they do. tip burn can be caused by both deficiencies and toxicities. you have rusty spots and unless the angle of light and picture is decieving, chlorosis. if no interveinal paling, that makes a difference. Just soem rust spots is low on Ca. that'd be a good guess here because there aren't a tun of coinciding symptoms, so less likely pH or nute-lockout. pretty sure ff trio is low in ca. so if you havent been adding ca with other sources, even more likely to be true. if there is interveinal paling, Mg is a possibility too. thinking pick is justmaking the interveinal portions look pale bc the leaves in different angles look fine. when they are 'full' they have some topography to the leaves... easy to decieve in a picture.

Definitely nutrient burn / lockout. Flush you plant with 2 or 3x its container size in water. Then check runoffs. If ppms are still over what your normal input ppms are continue flushing. If there less then or at your normal feeding ppm levels then feed with half a gallon at half strength. The plant should start to recover and you can resume normal feed/watering schedule. Goodluck. Please consider selecting me as the answer so I can be entered for a chance to win grower of the month contest I would really appreciate your support growmie 🙏 😃

You can see nutrient burn and lockout around Days 21-30 if you don't feed freshwater for a 3-5 days and you could probably feed the same strength of nutrients after the fresh feeds and it wouldn't show nutrient burn as the buds flower to flush.

I guess I rather am thinking nutrient burn not lockout.

That is 35 ml per gallon. My bottle says regular feeding is 60 ml per gallon. I can't seem to reply to your answer, Organoman.

35ml of Big Bloom per litre?..........They recommend 6.5ml per litre! What is the pH of your aquarium water too.