Dave
what is the RH ?

Relative humidity. If the plants are confided to a room, a humidifier would work well. Get a hydrometer too to see the levels.

Dry air and poor air circulation make for the perfect environment for pests. It's good to have a fan running on low, and try to increase the humidity. A word of WARNING when buying a humidifier. Weigh the pros & cons (mostly cons) such as: White Dust, Bacteria, Mold, and other airborne Micro organisms; not to mention, buying replacement filters/wicks, additives and possibly distilled water.

I don't mean to be a bummer, but I am currently going through this very discouraging process myself. ;-)

Rob

Rob,

I know what you're going through. I chose the cool mist wick style. No white dust. I clean out the entire unit weekly, and also rinse the filter. Replace filter every 2 months or so if you're running it all the time.

Been running 24 hours a day for over a month. No mold in the unit or in the room. During the daytime, I close the bedroom door and the humidity stays around 65-70%. At night, I fully open the door to air out and the humidity around the trees goes to 50-55%.

How much do the wicks cost?

Rob

They're $8 at lowes. Really not bad. I don't put anything into the water. I just clean out the tray and filter weekly.