Mid journey..1 week into 12/12 started from seed on 15/11..started veg 29/11 Flower space..dual spectrum 400 watt dimmable ballast..dimmed to 275 for veg( 400 overkill lots of unused wasted light on 4 plants) will boost upto 400 last four weeks of flower and upto 475 for the last week.. This light is constant 12/12.. I have had issues with cold and heat due to loft grow and freezing temps outside, still having issues as its not gotten warmer added heat is from bq fan heater with thermostat, dried a few fan leaves at first till got it set up leaves have recovered, inline fan and rhino scrubber waiting for adjustable speed thingy as its blowing to much space is 150x150x200..shaped like a tent..recon would still have negative airflow at half power. heater can't keep up temps have been as low as 10 but sitting now at 18-24 and 15-18 night can't really say the plants have been bothered some slow growth at Cold times. Grow medium is coco coir perlite 75/25..has been fine..was weary of dirt due to pests ph nutes Ec ect, and I'm glad I did. Ph'd everytime to 5.8 until getting meter I did it by eye and have had no issues thoroughly recommend Coco! Using Canna nutes gradually increasing dose as plants grow (killed of a cheese using the online grow guide) wish they would do one from seed.. Feminized 1x barneys critical Kush,1x barneys Acapulco gold, 1x elemental seeds trueberry and 1x CH9 seeds blue lemon Thai. All girls confirmed..was suggested to me on this forum that a plant with one pistil is a male all mine are showing 2 but I cant find info on this any ideas for future reference really.. Veg space is under 250 cfl and hood space is 80x60x80 only runs for 6 hours as move under HID when its on..Have 2 cheese at 4 weeks..all seems good cant wait to taste my own grown bud. That's it cost about 500 quid and 150 ish a month for electric..YEEHAA!