Lowryder #2 auto, plant is too short?

Hey,

this is my first experimental grow, which i started out with 2 plants of which one died 2 weeks ago.

And now I am unsure of how my last plant is doing. The plant is soon 4 weeks and i think it's too small (only about 2 iches high)? Someone know what to do about it, what might be wrong? Can someone also confirm to me that this plant is a lady? Any help is appreciated!

I'm watering the plant from the bottom. I have used biobizz grow since 1 week of age. My lights are CFL's, 2x50w daylight and 4x20w 2700K a total of 180w, which are 3-6 inches from the plant. I don't know about the pH value, i have given the plants tap water which have been standing without a cap for a few days. Heres some pics:


Pic 1





Pic 2

Hmm, I'm really not an expert but I can say safely that your girl is indeed very small, possible causes could be high ph'ed water which stops intake of nutrients, over-fertilising leading to salt build-up can also stunt growth, but the odd thing is your leaves look quite healthy, which would be very odd for over-fertilization which usually burns leaves.

Since you don't test your water's pH I'd be inclined to go with that, but like I said, not an expert. Whether or not it's the cause, however, you should keep water pH between 6.2-6.8 as an ideal.

consider this grow as a learning lesson:

1. Autoflowers, given their short life cycle finish by a predetermined time due to their genetics. Mistakes made while growing autoflowers are irreversible, since you cannot veg them longer to compensate the stunted growth. Try some feminized seeds instead.
2. You have a nice little set up going, however, you need to monitor your pH, how much nutrients your adding, and your feeding schedules ect ect...
3. You need better lighting, a high intensity light maximizes indoor yield.

or it could just be a runt. its pretty common

Ok, thanks guys for the help!

I will get some pH indicators to check it out. If the pH value is ok I guess it's just a runt.. better put more seeds next time.

What do you think, is this plant worth growing untill the end? Any ideas what a little runt like this could give?

called low ryder for a reason i guess!

looks healthy enough though

Some lowryders are just weak ,being autos n all.out of 4 I got 1 plant like yours yet all my plants were in the same condition