hi guys, I have 6 vast and fast, 2x 2 vast and vast and 2 purples in 10 litre pots, clay pebbles, 6 inch fan and filter, 5ftx5ftx6ft tent, Wilma hydro system. 18/6 light from 600 watt hps bulb, they are 19 days old and just starting to flower. my ppm is 1100 and ph 5.8. I`m thinking give them another couple of days and then clean the tank and start bloom nutes. any input would be greatly appreciated, thanks in advance.