Stunted seedling growth

So I have two blue thunder seedlings going on week 3 today since they sprouted and they only have 2 full node sets and are barely 3 inches in height. Is this relatively slow growth? How fast is normal average growth? Also some leaves are curling underneath eachother, I was reading it could be cal mag deficiency? My ph is 6.3 in coco coir perlite pre mix. I’m using viperspectra 450 w led 36” above tops in a 2x2x4 tent.

Here are some pics

Vipar tip : BOTH SWITCHES on all the way thru. Bring light down to 18-20” above canopy.

Budzbuddha said:

Vipar tip : BOTH SWITCHES on all the way thru. Bring light down to 18-20” above canopy.

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Thanks I appreciate your insight!

Your pH is too high........should be around 5.8 - 6.0.
Based on your other 2 threads.........you need to start feeding daily to run off.

They look a little behind but not terribly so. Should improve greatly with bringing that light down. I got some about a week ahead of you and they are only a little bigger. Run mine in soil at a range of 6-6.3 too...coco I have read is good in 5.5-6.5 so you should be ok there. Just give it time

Dank Bongula said:

They look a little behind but not terribly so. Should improve greatly with bringing that light down. I got some about a week ahead of you and they are only a little bigger. Run mine in soil at a range of 6-6.3 too...coco I have read is good in 5.5-6.5 so you should be ok there. Just give it time

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Thanks for your positive feedback much appreciated man! Do you have any pics?

The two up front are 25 days and 17 for the little one in back
This was 10 days ago.

Dank Bongula said:

View attachment 4835931
The two up front are 25 days and 17 for the little one in backView attachment 4835932
This was 10 days ago.

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Those are some nice plants man!

Bluethunder98 said:

Those are some nice plants man!

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Thank you! I feel like they are a little behind at times when I see others but oh well, gonna ride it out and see what develops.

Keep us updated!

Dank Bongula said:

Thank you! I feel like they are a little behind at times when I see others but oh well, gonna ride it out and see what develops.

Keep us updated!

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Here is an update on the plants
The one has those little spots on the one fan leave no others at all I think it might be a fungal infection?!?

Have you checked for critters? just curious

Old_fart_stoner said:

Have you checked for critters? just curious

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Yeah I didn’t find any mite or anything and the tent has been pretty clean. I know one day for like an hour it got super humid because I unplugged the in-line fan accidentally.

Budzbuddha said:

Vipar tip : BOTH SWITCHES on all the way thru. Bring light down to 18-20” above canopy.

Click to expand...

I’m about to go to flower should I keep the light the same distance?

Dank Bongula said:

Thank you! I feel like they are a little behind at times when I see others but oh well, gonna ride it out and see what develops.

Keep us updated!

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Here is an update a week into flowering they are very happy. The one on the left is bluethunder( from seed) and on the right is pemmex which was a clone. I had tossed the deformed one because I ran out of light coverage space. When/should I remove more smaller bud sights. I just don’t want a whole bunch of popcorn and would rather the plant put energy in the healthiest sites!