GG12 didn’t stretch and is pretty small but is in full flowering mode, the other 3 are still stretching but look very close to start. They all look super happy 😁 in their super soil, I don’t feed other than a silica supplement in each watering, everything else the plants need is available to them in the soil.
The short answer is NO.
If you are keeping the correct VPD then that is great. With increase in CO2 you are now able to pump them with a lot more light.
Keep VPD steady at your reccomended levels and you are good to go!
Hope this helps.