Plant flowering way early!

so i recently got 2 grand daddy purple clones from my local dispensary, and started em at my buddys house they came with preflowers on them fully rooted in rockwool. we put them each in 2 waterfarm units.(just the single units) we vegged em both under a 400 wt mh for just 1 week. bent them and vegged for 1 more day because they were getting as tall as my garden wen i flowered(12") and i have the same hieght restrictions as he does.(4') and that usually comes close to being to tall. they have about 5 bud sites on each that get enough light to form into colas. except they just sprouted quite a bit of pistil hairs and seem to be just buding as is and not growing any more hieght wise. any body ever seen this b4??

ill try an get some pics up as soon i get over there, but any help as of now wld be useful. thx

Autoflowers maybe?

maybe but..i don't think so.
I don't think its lack of a root system either because for the 1st week of vegging we gave em bloom roots and that always works wonders for me, and i can see the roots showing out of the rockwool and into the hydroton rocks

hmmm?

Is this your first time growing granddaddy?.
Because, I too flowered some granddaddy recently.
And those girls are less than half the size of my Kush.
I love the taste of Purp, but I don't want to grow no more.
Don't make $.
Don't make Sense.

yea it is my first time trying the GDP. i knew going in that it was a short flowering plant but this is really short to start budding.
ill let it go but if it doesnt get larger soon ill need to throw another in her place ;(

you prolle changed the light cycle and thts what triggerd it ta flower.