bob, your plants look very nice, you should be very pleased with the BB blue cheese, its in my top 3 favorite strains of all time, you might never every see better bag apeal in your life! let her flower 10 weeks you have light greens, purples and white powder sugar crystals. the only thing is you may want to start flowering soon, although in hydro vs potted plants you dont need as much space in the root zone, you can probably finish plants at 3ft max in the tray, i had a blue cheese pheno that was very lanky and stretchy so thats why i suggest you start flower soon, maybe flood once every 3 hours. what nutrients do you use mate?