Two sweet seeds red poison seedlings giving me issues

[lunarman]

I germinated these two in paper towels in 2 days and no problems.

I use coco and perlite in autopots.

After the tap roots popped I put them in cut down shorter solo cups that had the bottom half cut off them. So bottomless solo cups. And the solo cups were just coco and perlite. I didn't want to leave them in the solo cups for too long because they are smaller and could get root bound pretty easily. I moved them (I would not call it transplanted) to autopots after a few days in the solo cups.

The autopots were precharged days before. Rinsed the coco. Soaked it. Cal/Mag. And a 25% solution of growth feed that I threw in when soaking the coco. That might be part of the problem. If this looks like toxicity then that might explain it.

The problem is after moving to the autopots things have slowed right down and they don't look good. They are under a t5HO fixture that I like for seedlings and it works well. So I dont think lighting is the issue. And I had put clear glasses over the seedlings for parts of the day for humidity. I also used a Optic Foliar spray on them. I lighter mixed version that is for seedlings.

Here is a picture of each one.

 

[lunarman]

I forgot to mention the all important PH. I use the control wizards probe. Both pot's medium measures 6.4 to 6.5 right now.

 

[Lizardking]

Your growing in coco right? There’s your answer right there dude,your ph is out.
Aim for 5.8-6.0

 

[lunarman]

@Lizardking

But I have not had this problem before with my coco. I have two Dinafem Critical that are a week ahead of these two and they are rocking. They were germinated in paper towel too, but I put them directly in to the autopots. Same coco and perlite and the PH is the same.

For whatever reason my PH for coco is usually around 7 which is around what my tap water is. So I also PH my water down to around 5.5 to 6.0 and add to the coco. And in the end the medium's PH is always around 6.5. I can't get it to go down any lower. Not sure why. I'd like to get it to 6.

 

[Lizardking]

What are you feeding it? How are you checking your ph...from runoff? Your ph is going in the right direction,if you’ve been feeding it? When you feed,your plants ec,should drop and the ph rises,but that plant looks hungry to me Dude.

 

[lunarman]

What are you feeding it? How are you checking your ph...from runoff? Your ph is going in the right direction,if you’ve been feeding it? When you feed,your plants ec,should drop and the ph rises,but that plant looks hungry to me Dude.

Not feeding yet. They are new seedlings. But the coco was primed with ph'd water with some cal/mag and a small amount of Remo grow nutes.

I have a soil probe PH tester from Control Wizard. Its accurate. Not the cheap crappy garden ones.

So you think is is lack of food and too high of PH? I can mix up some water with some light grow nutes (Remo) and PH down to 5ish and hand water them with it if that would help.

 

[lunarman]

I couldn't wait for an answer! LOL. I mixed up some feed and water. Mammoth P. Kelp. Cal Mag. and very small dose of some grow nutes. And PH'd the water down to 5.5.

 

[Waira]

-- huh, they are not liking the coco for some reason,.. pH is a bit high, but not lock-out high,... Overgrow did nothing to help? .... this all-over yellowing smacks of something in the coco,.. what brand? How did you rinse? Are you using Ca-Mgm, since Remo is not coco specialized,... and you need to make sure you;re taking care of that whole coco CEC Ca hogging thing,... what nutes you put in should be OK, no sign of burn,.. not starving either,... bad coco may have too much K and/or Na in it... both are loaded in raw coco, which is why they have to age/rinse/CEC buffer the hell out of it to make it work for grow media,...

 

[lunarman]

-- huh, they are not liking the coco for some reason,.. pH is a bit high, but not lock-out high,... Overgrow did nothing to help? .... this all-over yellowing smacks of something in the coco,.. what brand? How did you rinse? Are you using Ca-Mgm, since Remo is not coco specialized,... and you need to make sure you;re taking care of that whole coco CEC Ca hogging thing,... what nutes you put in should be OK, no sign of burn,.. not starving either,... bad coco may have too much K and/or Na in it... both are loaded in raw coco, which is why they have to age/rinse/CEC buffer the hell out of it to make it work for grow media,...

Using Canna Coco brick.
http://www.cannagardening.ca/coco_brick
Product blurb........
This means it is made from the highest quality ingredients. It is washed and buffered, not steam sterilized and RHP certified for horticulture. The buffering process allows CANNA to “pre-program” the medium to a certain age. This ensures the same consistent, high quality medium time after time. The composition of coco components blended together offers the best water-air ratio.

I didn't rinse it because apparently it doesn't need it. And I used the exact same batch already for 2 Dinafem Critical 2's that are rocking right now. Started them a week before with the same products and same autopots and they are doing great. PH and water was the same too. I primed the coco after I hydrated it with PH'd water and some Remo Calmag and Kelp supplement. The only thing I did different with the Red Poison beans is use the solo cups instead of right in to the autopots. I can't think of what else it could be other than that. I might just toss them if they don't come around in a couple of days and redo them without the solo cups.

 

[lunarman]

I am going to abort these two. Got two more anyway. No great loss. Learning experience. And I don't want to grow anything that was totally messed up with as seedlings because they are likely going to be stunted, stressed, deformed etc.

I picked up a bag of GH rapid rooter plugs and will use them for germinating instead of paper towels. And will keep the seedlings in them for 10-14 days and then drop them in the autopots and coco. I should have done this earlier.