You guys are chasing ghosts. Your veg light cycles should be at least 18 hours of light each 24 hours, and that has to be continuous uninterrupted light. I use 24/7 light cycle for vegetative growth. IE my lights never turn off, plants grow great. when you switch to flowering light you need a minimum of 12 hours complete uninterrupted darkness per 24 hours. so that means you turn the lights off for at least 12 hours a day. I use 12 on 12 off, as does 95% of successful growers. Jacking around with the light schedule will cause you problems, keep things as simple as possible to give you a better chance of success.
You may be able to harvest sooner with a jacked up light sched, but your yield will suffer.
Spraying carbonated water on your plants will only cause problems, most likely light burn from the droplets acting as magnifying glasses and the leaves burning. CO2 only works when the lights are on, so no sense in adding any at night, its just a waste. The most efficient level of CO2 is 1500-1600 PPM, regular air is around 200, the yeast generator may add another 200 in a small enclosure, with half being wasted due to the dark. Concentrate on sound BASICS to grow and you won't need CO2 until all other aspects are at their peak. If you just stick to the basics you will grow more/better weed than 95% of the folks who experiment with the advanced techniques from the get go. There are so many people who universally think that topping/fimming/SCROGging/SOGging will automatically increase their yields, they will if the plant itself is grown to its maximum potential to start with, otherwise your just going to be disappointed in the results and all the time you spent trying to make 1 plant produce 5 pounds. Just grow the things and leave them be. give them what they need to grow and nothing more, the results can be surprising.