Need Help

There about 2 weeks old in coco 5th seed that has done this after being healthy for 10 days they start to do this witj the leaves my 130 tru watt led is 4 ft away i water every 3 days with very little canna A and plenty of cal mag plus and lots of recharge micros the humidity is about 45 the temp is about 80 im my cabinet please any help.

Canna should be used as a set.. give it about 5-6 ml of EACH Canna Coco A & B, and preferably 5-7 ml of Canna Rhizotonic. Occasionally hit it with a ml/ gal of cal mag but not every feeding if not necessary. Also, your plant should have stayed in a smaller pot for a while still. Not worth down-potting but it def will slow things down.

But your main issue is likely the lack of Phosphorus due to only using A. Good luck bud!

Here's a "Life Line."
https://www.cocoforcannabis.com/

How's the grow room airflow?

Its pretty good i have a 3 by 2 feet cabinet withe a 6 inch pulling the hot air out withe the filter and a 4 inch pulling the house AC in stays around 78 to 81 in there and i have a clip fan blowing in side

is it blowing directly on or around? how aggressively?

All around the leaves barely moveput there getting plenty of air

I flushed them today then at night before i left for work i gave them the A and B so hopefully they start to come back and im going to start to ph the water to 6.5 or 6 to see if that helps before it came out of my faucet around 7 and i left it there...

6.0 ph is ideal imo

The affected leaves are touching the medium. Were they laying on it perhaps?

There not touching the coco it looks like it from the pic people are telling me its cause i had no cana B with the canna A there no potassium in the A is what there missing is what people are telling me hope thats the case

Scotte said:

There not touching the coco it looks like it from the pic people are telling me its cause i had no cana B with the canna A there no potassium in the A is what there missing is what people are telling me hope thats the case

Click to expand...

It’s definitely the lack of P from only using A. And 5.7-5.9 pH is ideal for coco but 6 will be okay. And I know it’s one of their pricier products, but using some Rhizotonic, especially early on and after any transplants, is a fantastic way of maximizing your root growth speed and health, absolutly worth the $, even if you only want to occasionally use it. Keep in mind, Rhizotonic will increase your pH.
So again, make sure you use equal parts A and B, 3-5 ml each when small in veg, 6-8 ml each when medium and honestly, if your water source has a decent calcium supply, you can max out around 8 ml A and B in Veg. After mixing, let mix for a good hour atleast preferably, then pH to 5.8-6 and you will be fine.

Thanks you