Minigrow:Wedding gelato RQS & Black Bomb

Have the plants now standing at 22cm from the lights with 1500ppm Co2 added with the sugar and yeast fermentation method. I expect ((from the intensity charts I found for this particular Led light at 22 cm distance from plants)) the intensity to be from 900-1000 umols at the top of the plants. I stopped giving them any fish mix and bio grow from the previous week ,to let the plant focus on bud ripening As I am reading in a forum the Co2 levels I have in the grow room right now for this weeks is too much and i have to drop around 1000,by removing some bottles.