Originally Posted by Tokesworth44
The tent is on carpet, which is over under carpeting and then concrete I'm assuming.
I have one round of GG4 almost done and a second round flowering in another tent, both on are on the same floor and no issues so far in those strains. I was told this PK strain likes it a bit warmer though.. I wonder if that would do it then?
I hate to restate myself, however it is magnesium lockout. They just need something to raise them off the floor.
I've seen it many times in my own grow. It is especially pronounced when you also filter your water (i.e. filter out the magnesium and calcium along with everything else), and when the plant goes into flowering.
They'll be fine.