Fonzyyy21
Well-Known Member
68 is not optimal. Optimal is a wide range, because there will be always enough DO.
I don't know the exact optimal root temperature for every strain of cannabis, because there is not a lot of research done in that field.
But as long as you keep the temperature between 64 and 80, you are ok.
70 and 74... great.
The beauty is that absorbed oxygen is refilled on the spot. So there will be always more DO available then the roots can absorb.
There are not many places on earth that are so low below sea level that you would notice a difference.
I live below sealevel and no problem at all.
I visit a greenhouse that uses huge bassins for hydroponics with floating vegetables, herbs, plants.
In the summer of 2018 and 2019 the temperature in these bassins was over 77 degrees.
No problems at all. They even did not do something extra to make the water move (normally they run a pump every hour or half hour for 5 minutes.
View attachment 4628728
Sooooo not your roots, but okay.....
and whatever you say boss, you win, you know everything.