Need more to go on than a pic of your leaves. How have you been growing the plant, set up, etc. Looks like a nutrient imbalance maybe but need more info and pics. See some brown tips on leaves which is usually nuts burn. Soil or hydro?
Coco the tip burns are old I'm looking at the yellowing only. I use canna coco a+b at full strength and calmag at full strength also Roots excelurator and silica every other feeding. This literally happened over 8 hours I'm kinda really confused I didn't change anything. Not sure on ppm or e.c don't have a meter. First grow
Diagnose Sick Cannabis Plants | Marijuana Nutrient Problems & Symptoms by Picture | Grow Weed Easy Looks like could be phosphorus deff ? But have a look at that man..
Actually after looking at other pics could be nitrogen deff.. Cannabis Nutrient and Deficiency Table - RQS Blog Just trying to help... peace
I was actually thinking the same the yellowing is pretty even over the leaf no real spotting...but I'm feeding at full strength the canna coco should have all the N it needs...I might have to wait and see if it gets any worse. I'm thinking light burn is a possibility since those tops have been newly exposed to light the ones that were exposed to the light already are looking fine. But my light is 3.5 feet over the plants...fuck I'm confused haha First grow
Yeah they all look pretty pale tbh bro... imo does not look like light burn from my experience already... but others might say different... in crease the nutes a little of the N see how she reacts ?
Ya I'll have to try 5ml/litre instead of 4 and see what happens..I'll be feeding over the recommended dose though..anyone have any experience with Canna coco? First grow
Not too happy about how fast it happened...not a good sign if it's not corrected this could get bad fast. First grow
Flush, and give it 1/4 nutrient. Make sure you check pH in and out. Looks like nitrogen toxicity. My opinion. You don't have to blast coco with nutrients, as you are feeding regular. My current 6 Jock Horror Autos, coco coir grow.
I thin it looks more like nitrogen defficncy not toxicity as it does not have the claw and the leaves are not dark green.?
Sorry was looking at your hand in picture image. If leaf tips are burning you need to drop your nutrients downabit and flush regardless. I would still. Yellowing at the tops is cause by calcium def. If it was nitrogen the lower leafs would go first. To much nutrient can also look like nutrient def. It all could be pH fluctuations also, have you checked your runoff pH? Are you watering to a good runoff. If your not, you get nutrient buildup, salts, and pH issues in the coco. My current 6 Jock Horror Autos, coco coir grow.
Nitro deficiency starts at the bottom I've always thought? I thought the yellowin was magnesium and rust spots was calcium. I'd personally up the magnesium but calmag in general wouldn't be a bad idea: Grow journal
If new growth is yellow green/lime green basically, its calcium def. Starts from the top. Mag starts from the bottom. Also its patchy kinda and brown spots. My current 6 Jock Horror Autos, coco coir grow.