Kurt, PH for plants should be 5.5-7.0.. and 6.5 is SUPER SAFE..

300 plants-- well they were flowered around 6-10 inches.... about 50 plants were crushed,, JUST pushed down by their neighbors...

They doubled in size to about 12-20 inches...
it was an experiment... I might add.. the BUDS were HUGE... for such little plants..

A total mess to clean up...



Hydro, If you can add light and keep the temp below 80 degrees, then add light...: )

Can you get the light down another 6 inches without burning the tops of your plants? It will make a big difference in your harvest... A BIG DIFFERENCE

if you can get a fan blowing between the canopy and the lights... you're in the money