ajunior Posted December 30, 2020 Report Share Posted December 30, 2020 Hi! This is my first indoor grow and so far its been OK. I'm at Week 5 of flower now and the lower, older fans are showing signs of nute deficiency or excess. I'm growing in Canna Terra professional and been feeding it bloom nutes with some boosters for Vit-B and potassium/phosphorus I feed every 3-4 days, temperature seems fine between 20-25c, ventilation with exhaust and oscilating fan, PH on the run off water is 6.3. Is this deficiency or excess? Looks like something with potassium from other photos online...Am I correct or is it something else? Also, what can I do to fix it? The other leaves on top look fine and the buds are looking quite healthy. THANKS! 1 Quote Link to comment Share on other sites More sharing options...
Sugar Posted December 30, 2020 Report Share Posted December 30, 2020 (edited) Yes I think it is potassium deficiencyLink below from canna website provides reasons why and solutions to fix All the best with your grow https://www.canna.com.au/info-courier_potassium edit: Actually, No, I think it is phosphorous deficiencyhttps://www.canna.com.au/info-courier_phosphorus Edited December 30, 2020 by Sugar Quote Link to comment Share on other sites More sharing options...
micmac Posted December 30, 2020 Report Share Posted December 30, 2020 Heat damage or over watering, or both Sent from my SM-T510 using Tapatalk Quote Link to comment Share on other sites More sharing options...
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