Brown spots on leaves! Week 4-5 flower?

[growboy420]

Hi it’s week 4-5 of flower on my northern lights and bubba kush grow and I see some brown/ yellowing spots on the leaves. They are mostly on the northern lights plant. (Northern lights on the left of the tent and bubba on the right). I had a bad overwatering and nitrogen problem a little over a week ago and the plants looked terrible but they bounced back after a good flush and are here now. After the flush ive been only watering plain water with no nutrients. I usually use the general hydroponics flora trio. Just wondering what is causing this now? My temps are 76-80 and humidity around 40-45% any tips on what to do to fix this or what this is doing to my plants??

 

[013]

Your plant is well into flower cycle where the nutrient demands are the highest. However the nutes were just washed out by the flush. It’s been in that bag for how many weeks? Bet the soil is depleted. Since the flush you’ve given nothing but water only... how is she supposed to make flowers with no resources?

Please feed the plant & see what happens. I didn’t hear mention of cal-mag.... are you using a cal-mag supplement?

see what other replies come in

 

[growboy420]

Your plant is well into flower cycle where the nutrient demands are the highest. However the nutes were just washed out by the flush. It’s been in that bag for how many weeks? Bet the soil is depleted. Since the flush you’ve given nothing but water only... how is she supposed to make flowers with no resources?

Please feed the plant & see what happens. I didn’t hear mention of cal-mag.... are you using a cal-mag supplement?

see what other replies come in

Ok that makes sense since I’ve only been feeding water. And no I do not have a cal-mag supplement. Should I get one?

 

[013]

Absolutely cal-mag is needed