stuck in seedling stage?

hello all my question is simple
this is a silver haze seed and its been in this stage for almost three weeks now same size
i am noticing some root growth under the rockwool cube its in
i guess my question is does it ever take this long to start going?
i have three other kinds going and they sprouted within a week and a half
any help would be great

It looks damaged or deformed. It sometimes happens to seedlings that either while first forming, while in the shell or as they come out of the shell, some damage occurs. This is sometimes just a genetic oddity and other times the young plant is cut by the shell as it sprouts. It's much more common with old seeds. We recently started a mother from a deformed seedling that took a long time to get going just like yours. It actually sprouted two tiny little fuzzy balls between the pod leaves after the single-bladed leaves were too damaged or deformed to grow. Sometimes it's not worth the effort but if you have a spot for it, you never know how awesome the finished plant might turn out.

it looks like the stem is growing fine but the top isnt doing shit from the look of it i wouldnt waste my time but you might want to wait for about a week and see if itll pick up

thanks guys you learn something new every day
ive had a lot of problems with haze seeds 13 total and only got that one to germinate and that happened to it
it still has new roots starting to grow out of the rockwell cube so ill keep it for another week and see what happens
am i doing anything wrong to germinate them? i am three for three with a medical a widow and a critical seed they call it but those popped up fine
just wondering if any of yoyu guys had problems with haze seeds in specific
how do you think these other guys look? i get confused on what to trip or not and their about 10 inches high now when do you think i should go flowering stage?

Flower them at 6-8 weeks old, when they're starting to show preflowers and the second lower branches (first "true" set) are big enough to take for clones - if you plan on that. Also, if you're short on height you might wanna look into topping them and allow for 6-8 branches to develop without the dominant apex, it will most likely also increase your yields... Search, topping and pruning. Seedplants gets BIG, and out of hand size-wise rapidly...

I would just discard the runt, sickly plants always has an increased risk of contracting diseases that they in turn can transmit to the others. Heed this warning and keep a clean environment - one of my best advices... Ever...

And the rockwool looks soggy as fuck, ideal conditions for Pythium/rot... just my 0,2...

The other plants looks just beautiful, make sure to keep them that way.

Good luck!

does anyone else have problems germinating haze seeds as i am?
13 and just that one that looks sick came through
is there a better way to germinate?

dude... it looks like a goner.

no real head just cotyldons. it'll probably stay alive for a while but it's pointless.