VanQ LED GLMX720 test

Hello   Now we are at week 4 since start of flowering (12/12). ​​​​​​​Same ole same ole  Blueberry OG still awesome, but finally the rest have started flowering and showing some phenotypes - quite chuffed about the dark purple one. Now just time for some swelling of the buds - what do you guys use to fill in the buds?  They are under the VanQ GLMX720 LED run at 80% (680W) Humidity in the 60-70% range and day temps around 30C and night 23C. (heat wave and heavy rains - the ventilation cannot keep up - yikes) In biobizz light mix in fabric pots. Fed greenhouse powder feed short flowering, PK booster, Silicate powder and some CaSO4  Kind Regards