Help please first bad signs 6 weeks into grow

Unsure of what this is showing me in coco, under e720 leds right now dialed down 360 watts they are like 30 inches from the canopy

Burnt tips is normally a sign of overfeeding. All in all...looking great.

Okay so I run a drain to waste, with cal mag and gh trio 25 gal res should I rinse the plants with ph’d water because I bumped the Ec up to 1.5 thinking they were deficient, or just dilute the reservoir?

Also for nute burn I should turn the lights back up right they were at 450 dialed it down trying to figure out my problem, but wouldn’t it make nute burn worse because it can’t use the nutrients it is absorbing as fast?

Guntherfredo said:

Okay so I run a drain to waste, with cal mag and gh trio 25 gal res should I rinse the plants with ph’d water because I bumped the Ec up to 1.5 thinking they were deficient, or just dilute the reservoir?

Click to expand...

Is your PH in check as well?

In the feedings it’s never been out of 5.7 to 6.4 the plants whole life, run off of the plants is 6.3 ph, Ec.8 inflow was 6.0 and 1.5

Most prominent on the fastest growing plant

overfeeding and a Mg deficiency.

quick foliar with epsom salts will fix the Mg

if you feed daily, drop your EC to like 0.8 to 1.0
i'd run some plain water thru for 12 hrs to give a quick flush.

and re-calibrate your pH meter first. always start with pH

I just recalibrated it the other day and I’m in coco so I feed multiple times a day so flush with phd water and continue feeds after with lower Ec? It happpened when I jumped the Ec up, I flushed the worst one and lowered nutes and fed all of them

rkymtnman said:

and re-calibrate your pH meter first. always start with pH

Click to expand...

Guntherfredo said:

I just recalibrated it the other day and I’m in coco so I feed multiple times a day so flush with phd water and continue feeds after with lower Ec? It happpened when I jumped the Ec up, I flushed the worst one and lowered nutes and fed all of them

Click to expand...

nope, in coco you FLUSH with a very light nute solution, never just plain water. glad you said that. i'd run maybe 0.4 to 0.5EC thru it for however many feeds you do in a day. then start back on lighter nutes.

i would still foliar feed ASAP with epsom to fix the Mg issue before it gets worse.

when you feed coco, are you getting plenty of runoff?

rkymtnman said:

overfeeding and a Mg deficiency.

quick foliar with epsom salts will fix the Mg

if you feed daily, drop your EC to like 0.8 to 1.0
i'd run some plain water thru for 12 hrs to give a quick flush.

Click to expand...

I ran phd water through and dialed back the nutes I feed 3 or 4 times a day still trying to dial my drip emitter system in when I ran nutes again I did 1.0 Ec 5.9 ph and I keep them pretty saturated all the time, because it’s 70/30 coco perlite and they are in air pots, good run off every feed

oh and @Guntherfredo google search H3AD's formula for coco. it uses GH nutes and epsom salts.

Guntherfredo said:

I ran phd water through and dialed back the nutes I feed 3 or 4 times a day still trying to dial my drip emitter system in when I ran nutes again I did 1.0 Ec 5.9 ph and I keep them pretty saturated all the time, because it’s 70/30 coco perlite and they are in air pots, good run off every feed

Click to expand...

when are they due again to feed?
your next feed, shoot for half of what you just used (1.0) so about 0.5EC do that for the next 3 feedings. then go up to 1EC
and check out H3AD.