Technical Issue Day 15, seedlings not even an inch tall

[Highteq]

Seems as though my seedlings are growing at an extremely slow rate. Im having a difficult time finding any seedling online at over two weeks that's remotely this small. Can anyone confirm or deny that somethings off, I know grow rates can vary but this seems like I may be wasting my time waiting around. They seem healthy, just extremely slow.
Background information on the environment and plants:
Purple Kush Fem Autos (quantity 3)
Container is 2.2Gal Air pots
Soil is 3 parts Peat Moss, 3 parts CompostHero Compost, 2 parts Coco (brick), 1 parts Vermiculite
Water is dechlorinated (24+hr) tap water 8 pH adjusted to 6.3 pH. 26PPM
Nutrients is "pH Perfect" Micro, Grow and Bloom (Not used at this stage yet)
Grow Room is 3x5' full shower with Mylar interior with a sealed roof.
Ventilation is (2) 6"intake fans, (1) carbon exhaust fan exchanging air 2x sqr ft and (1) 9" oscillating fan within the grow space
Lighting 18 hours on 6 off (1) Viparspectra P2000 LED, (200 wattage wall usage, 600w HPS equivalent) upto 1600 PAR (running 100% power around 26" height)
Temp (Temp weekly average is 79*F with a night time low of 62*F)
Humidity (Weekly average is 48%RH, night time low of 28% RH) ( running humidifier during daylight hours set to 70% full blast)

 

[Arthur]

2 weeks from what? Germination? Sprout? First leaves?
Most around here count from first true leaves, not from sown, or sprouted, so any 2 week old plant you see in here is most likely closer to 4 weeks from soaking, or 3 weeks from sprouting.

 

[Arthur]

I'll add, there are also those that will bend timelines to either make themselves look like better growers (in their mind) or think it says something for the genetics.

 

[JSH1973]

It looks healthy so it's probably just very busy under ground

 

[Highteq]

2 weeks from what? Germination? Sprout? First leaves?
Most around here count from first true leaves, not from sown, or sprouted, so any 2 week old plant you see in here is most likely closer to 4 weeks from soaking, or 3 weeks from sprouting.

Today marks 15 days from surface break with the start of serrated leaves. 19 days from seeds entering ground and 20 days from soaking in water for 24hrs to expose tap root.

 

[Highteq]

It looks healthy so it's probably just very busy under ground

Yea I agree and that's my hope as they do look great. Hoping they're busy underneath. Just under the impression they should be growing a tad faster given their cycle time line for autos. I'm plan on staying the course and seeing what plays out

 

[Arthur]

I'd say you could dim the light some, kinda wasted at this point, in a 4x4 that I run 450w at full, if I just have sprouts, I dial that back to 25%. If I have girls running, I tuck them under the canopy. If they start getting leggy, you can always crank it up a bit, but I don't see that being a problem here!

 

[Arthur]

I just went and looked at the strain, from what I see out there, it's a fairly small strain, 12 to 24 inches for a finished plant. Given that, she looks just fine. Sounds like you should expect short and squat, and maybe avoid much training as well.

 

[Highteq]

I'd say you could dim the light some, kinda wasted at this point, in a 4x4 that I run 450w at full, if I just have sprouts, I dial that back to 25%. If I have girls running, I tuck them under the canopy. If they start getting leggy, you can always crank it up a bit, but I don't see that being a problem here!

I've give that a trial test, I consider reducing the light to stretch them a bit but didn't stick with it as I thought since they're not burning up that the more light energy they get the better off my situation would be. I'll give it a go for a few days and see if they stretch out a bit.

 

[Bmurrciless]

2 weeks from what? Germination? Sprout? First leaves?
Most around here count from first true leaves, not from sown, or sprouted, so any 2 week old plant you see in here is most likely closer to 4 weeks from soaking, or 3 weeks from sprouting.

Wasn't really aware of that never thought we might start our time lines differently makes me feel slightly better about what I'm doing lol. Thanks for the insight though that's good to note I'll try and look around and maybe adjust my start dates going forward to be more on par with the community average if I'm not already.