Can’t figure out what is up with my seedlings. First Coco grow.

[da8balljunkie]

Environment
2x2 with AC infinity S22@50%
Coco +10% perlite in 4L fabric pots

Day Temp 21-23c, RH 60%, VPD 1.
Night Temps 19-20, RH 70%, VPD .7

Was feeding 250ml Water every other day after lights on. Canna start 2ml/L and Canna Rhizo 4ml/L.
Feed PH 5.5, EC .6. Run off 20% PH 6.8, EC 1

 

[rkymtnman]

you should always feed nutes in coco. plain water is a no-no

 

[TCH]

Did you wash and buffer your coco? I just washed and buffered my first ever brick and I washed with .6ec water and the runoff the first couple rinses was 4.1ec!! I'm no expert, but I feel like that could cause some serious issues.

 

[bk78]

Ditch the canna start and start feeding with proper NPK

Up your ph to 5.8-6.0

And up your temps

 

[da8balljunkie]

you should always feed nutes in coco. plain water is a no-no

I am feeding nutes. 2ml/L Canna Start, 4ml/L Canna Rhizo

 

[da8balljunkie]

Did you wash and buffer your coco? I just washed and buffered my first ever brick and I washed with .6ec water and the runoff the first couple rinses was 4.1ec!! I'm no expert, but I feel like that could cause some serious issues.

Using Canna coco professional plus and says not to buffer. But I did run through with with a weak solution and came back with a .4ec variation.

 

[Rurumo]

I think they'll perk up quickly if you warm them up to 27c

 

[da8balljunkie]

Ditch the canna start and start feeding with proper NPK

Up your ph to 5.8-6.0

And up your temps

I’ll switch to AB then. But is not upping my water in going to cause my run off ph to increase even further than 6.8?
I can’t up the temps or it’ll knock my VPD out of wack

 

[bk78]

I’ll switch to AB then. But is not upping my water in going to cause my run off ph to increase even further than 6.8?
I can’t up the temps or it’ll knock my VPD out of wack

Ok sounds good

Best of luck

 

[Grow Monster]

You're fine! Nothing to worry about. Let it do its thing.

 

[rkymtnman]

I am feeding nutes. 2ml/L Canna Start, 4ml/L Canna Rhizo

Once cuttings are transplanted from plugs into the final medium, you switch from CANNA Start to the CANNA (Vega) nutrient

 

[da8balljunkie]

Once cuttings are transplanted from plugs into the final medium, you switch from CANNA Start to the CANNA (Vega) nutrient

That’s different to what my schedule says. I’m meant to switch to AB when I’m in veg. I’ll give an AB mix a go though

 

[rkymtnman]

That’s different to what my schedule says. I’m meant to switch to AB when I’m in veg. I’ll give an AB mix a go though

that was from the canna site. from what i gathered, the Start is just a weak formula so you don't nute burn them while they are young

 

[Highway61]

As others have said, increase temps to 27-29. Also increase the ph of your nutes to 5.8 to 6.3. And water more to dissolve whatever has precipitated inside your media which is causing your runoff to be high ec. You can water more often and more volume to sort out whatever is going on in your media. Higher humidity would be good too.

 

[coreywebster]

I’ll switch to AB then. But is not upping my water in going to cause my run off ph to increase even further than 6.8?
I can’t up the temps or it’ll knock my VPD out of wack

It's new coco, it's fairly high in K so taking ph readings of your run off is pointless.

Reading run off ec is relevant later in life if you've got a problem.

Increase your temps and speed up growth and transpiration.