Help guys my 14day old amnesia autos are small

Hi I've never grown autos before and I've got these under 2x 600w dule spec hps lights and humidity is at around 44% and temp is around 28c these are amnesia and green crack is it just me but shouldn't the amnesia be bigger for 14days old

What kind of soil is that? or is it coco? Looks dense. May be unsuitable for the roots to grow.

It's canna coco plus

Have they dried out in between watering? Coco has to stay moist at least I think. Never used anything other than foxfarm soils.

Yes I leave them a day in between watering to dry out abit I give then around 2ltrs of feed every 2 days

christopherstaples27@gmai said:

Yes I leave them a day in between watering to dry out abit I give then around 2ltrs of feed every 2 days

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Thy didn't have any feed for the first week just water

I always think my autos should be bigger . Other people seem to have 6 inch plants by 14 days. If it were me I would be patient . You are probably tempted to add more nutes. That may be but I would go seriously slow as you bump nutes. If they are healthy and they are all growing at the same rate I think you are fine just dont get stuck on the number of days you were told by the seed company. I used to use that as a reference but it would drive me crazy wanting my plants to be on that expected schedule. As long as they are healthy. I will say it seems like a lot of light early in these girls life. Maybe back off the light strength see if you can get a little stretch . Just to kickstart them obviously.not too much stretch.. Good luck keep us posted

christopherstaples27@gmai said:

Hi I've never grown autos before and I've got these under 2x 600w dule spec hps lights and humidity is at around 44% and temp is around 28c these are amnesia and green crack is it just me but shouldn't the amnesia be bigger for 14days old

Click to expand...

Drop your lights down to around 6 inches away from seedlings then as they get taller bring the lights back up

Lights was 12 inch away I've moved them to 60cm away to try introducing a little stretch I've been giving 20ml A and 20ml B in 24 gallon water butt pH is 6.2. ec around 1766 as only got pH and ec tester kit yesterday

I lowered the wattage to 400w for 6days and nothing so turned them bk up 2 600w and moved the lights from 18cm to 60 cm to encourage stretch

How often you water/feed them

Coco should stay moist and needs nutrients from the start since coco has no nutrients. I think 60 cm is a pretty good good height for seedlings, just need to find the sweet spot so they don't stretch too much.

Not sure how you're getting 1766 ec from your mix. 20ml A and 20ml B in 24 gallon water would give you a much lower EC IMO. What is the EC of your water source? Is that ec tester calibrated?

Water feed them every 2 days there in 10ltr pots I give them 2 litres each ever 2 days

Ec of water before feed was 2676 after feed and added water got it down to 1766 pH was 7.99 brought down to 6.2

It's brand new don't think needs calibration will get some solution to test the kit and yes it's suppost to stay moist witch it dose I never let it fully dry out

christopherstaples27@gmai said:

It's brand new don't think needs calibration will get some solution to test the kit and yes it's suppost to stay moist witch it dose I never let it fully dry out

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Sorry, I was thinking ppm. EC numbers are usually something like 1.7 (about 850 ppm). Is the 1766 really 1.7?

Yes I believe so

When I make up a Bach again tomorrow for feed I'll test ppm rather than ec see what it's saying

What ppm is water before nutes

Don't know ec was 2676 with just water got it down to 1766 but I've read should be 0.4