CBD Blueberry and White Widow

For some odd reason, I didn't take a lot of pictures as in past weeks. Everything has remained fairly consistent. I've had to start adding additional water to the tank twice a week - a combination of consumption, slight leaks and evaporation. I trim out some of the suckers, cut back some of the bigger leaves that are blocking the smaller leaves coming up through the canopy. I also remove anything that appears to be wilting - why let the plant continue to push nutrients in that direction. Overall, they are getting bigger and stronger. I've moved the clones to a second smaller tent, where they will continue to get 100% light when the main tent switches over to flower mode - perhaps in a week or two. It depends on their growth - I don't want to run out of space in the tent, though moving the exhaust fan to the outside is an option that would create more space. I'm trying not to rush things. My plan during the flowering stage is to only harvest what is matured completely - I don't want to do that too soon. I also don't want o take down the entire plant at one time. Getting the larger growth out of the way will hopefully allow for more growth with some of the newer branches. Not including a mother plant, which should never get to the flowering stage, how long can you keep a plant producing? Can you harvest and then switch it back to a vegetative state and let it grow again? Why chop down the entire plant? We'll see how it works - it's my plan.