my mates had his white rhinos for about 5 weeks, put them on 12,12 a couple of weeks ago and cant c any change and they are still the same size as they were 2 weeks back and the temps roughly 20 celcius,
dont know, how cold is 20c in Fahrenheit, for the furst 2 weeks they usally only stretch and then after that they start to flower, pics of before and after woulf be usefull
dont know in fahrenheit but itts a decent enough temperature i know thatfor a fact as for pics i unfortunately aint got. i reckon wel gv them a little bit more time maybe a week or so hopefully they pull through lol
Could be many things without pics and more info...meduim ..nutes etc
You don't normaly get much vegative growth as the plant slows down and moves to bloom.
If there has been no signs of change AT ALL first thing I'd check is the PH.
ph wouldt effect only growth rates it would also make the plant look very sad. seems like they are just being done with the strech and some before and after pics would help alot.
it is also proabably just a slow flowerer