Or is it just a case of get the set up going. Check rh. And judge from there wich one i need. Was thinking in general what is the easiest way to keep rh optimal percentagesI don't like the tab timers. They seem to mess up often. We use a basic digital one.
You may not need a humidifier because the plants themselves humidify the air when they breathe out.
Yes, plants breathe. They breathe out water thru the pores in the leaves.