DJ Short Flo and Bodhi Rainbow Serpent

16 Sept: Flo1 continues to grow in textbook fashion while Flo4 looks gnarly as ever, but growing! Continuing with some LST to keep Flo1 flat and even, and giving plain water. The pots are large so they are watered less than twice per week. One feeding in two weeks for Flo1 to keep it from getting too much larger than Flo4 since they have to grow together in the same tent, otherwise plain pH'd water for all. The bonsai flo1 grew so tall and fast I thought it was a male, so I suppose it should be no surprise that it is still growing quickly! Flo4 was no slouch either but not as tall. @Faceinthecloud, I cant reply to the comments. Both of those blueberries are going to be my grow after next, I already have the seeds. These Flo were the freebies that came with them, so I thought I'd "practice" with these before moving on to those. Do you think if I put a (tiny, unrooted) clone of the suspected male RS in the tent with these girls when I flower them, then check it every day, I'll be able to catch it before it pollinates the girls if it is confirmed to be male? Wondering when I should switch to flowering so the plants don't outgrow my tent. It's my first go with photos, I've only done autos before this. Anyone have input on this specific situation?