New Grower Tap root question

[Chester]

I've always believed that the longer the tap root the larger the plant ... I recently harvested 2 Sugar Mango Ryders ... one started small and stayed small compared to the other ... I took them out of their pots today ... the taller one had a tap root of less than 1" from the surface and the much smaller one had a 7" tap root ... not what I had expected ...

No tap root ....


7" tap root ...


:tiphat:

 

[VzlaDabber]

Hello guys,

Need help with this. My humidity is way up .i've been reading some threads that say that I need to open the tent vents so it will suck fresh air from the outside since there's a vacuum inside there will be no air exiting from them just the fresh air coming in so no smell would come out of the tent. Is this true? The only air exiting the tent would be the exhaust air no matter how many vents are open?
attached you will find three different humidity readings in 3 hours.
highest one would be with no vents open, middle with one And what I found optimal would be the lower one. now i'm dow to 50%
also attached a diagram of my setup and tent openings wich are all the same size and look the same as the one I'm using as exhaust from the tent . I also putted in an oscilaron fan inside (one of them blade-less ones so the low setting is crap and ended up piting it on nearly the highest setting so it blows facing upwards and oscilating.
Also I think one of the sprouted seedlings looks dry. using 50/50 coco-perlite and the soil gets very dry too quick, i've been watering them daily only inside small pots witch are bottomless and just buried inside 11lts pots. Should I water the whole pot then?
One is looking too yellow and in another thread a guy told me not to worry about my first set of leaves but man am I worried they just look dry or burnt. I'm new and don't know the difference. All i see on it is that the only pointy set of leaves she has has its points curled up a little bit. Is this because the lamp is too close. 18" 400 watt virtual sun with veg bulb.
Pictures attched and i would greatly appreciate any help.

 

[blue]

Hi there Dabbler - Welcome to AFN!

Dont' worry about the humidity - it's fine. nice and high is good during vegging. If you can keep it below 70% RH during flowering, you shouldn't get any bud rot!

You can open a vent at the bottom if you have an extractor fan at the top (with a carbon filter maybe, not essential for now but will be in 50+ days). The fan at the top will suck fresh air through the hole in the bottom creating air exchange which is essential for healthy grow.

We're currently working on a guide for new growers - it will be covered.

The small pots you have in large pots is what we used to call "tiering" (it didnt work for me, but some used it with success)

Your true leaves look okay (colour wise) while the cotylodeons are eating up - they'll go soon anyway, but it does look a bit dry.

Are you checking the PH of the water before you put it on the plant. In that coco perlite mix - i would aim for 5.8PH and if you are feeding at all, I would keep it between 0.8 and 1.0 EC (including your waters background EC)

You should take a look at our coco subseciotn - there's some stickies there from various coco growers that may be useful to you!

Happy growing

Blue ^_^


Edit: Just looked at your picture - there must be a passive intake on your tent at the bottom - that top hole is for extraction

Double Edit: I just noticed your picture is upside down lol - and your scrubber is on the floor - It's something i've seen pro growers do - most of us have the carbon filter and fan at the top