Humidity goes with temperature and how often you water. Even the size of the fir bark is important. Maybe your mix would be better if you add a little something extra such as perlite or some spag.

Tell the readers more........

Humidity is overdone,the levels in this room are usually about 50% or a bit lower and the Phals are fine.

This mix has chunky peat, fir bark, charcoal and coarse perlite, it is for phals but I am seeing it very dry, maybe this is normal or I have watering more.

Maritza, the mix is supposed to copy or replace the surfaces and detrius where the ancestors of the modern hybrid Phalaenopsis grew/grow.

The climate there is probably zone 12. Where it rains and then the plants dries quickly or it if doesn't rain there is dew because the climate in those places is humid.

In the thread about a certain mix there is a lot of comments about how the mix looks and I'll

say it again the only way you can say it it is good or no good is to run trials.

You say the mix looks dry.....tell the readers here about your temperatures and humidity, where you are and where your phals are and I 'm certain you will get some good help.

This sort of Stuff

The Phals are in this room where there is a 600 litre Heated tropical fish tank. The temperature at 1600 hours is 19.5C and the humidity is 56% The plants are getting sunlight via a North Window filtered by a matchstick blind (Southern Hemisphere).

The conditions at a nearby AWS are temperature 17C Humidity 44% and the arid westerly wind is blowing.

a common misconception and misunderstanding of phal growers is that they never hydrate the media enough for it to retain moisture as its supposed to. Bark initially needs to be submerged (put the mix n a pot and something heavy over it to keep it submerged) for an hour or so. As long as the media has some moisture, it can be rehydrated easily, if left to dry out, than it will need the basic soak for an hour or so treatment again.... mix the bark with some sphagnum moss and the water retention gets much easier...

I agree, I did everything well but I think it is because of the RH does not even reach 40%, maybe I need a humidifier.

I live in Florida, the phals are in a room with enough light, the temperature is 26C, the RH ranges from 37 to 40%.

I'm in NY, and my office is very dry. My phals do very well. All are in bark except four miniatures given to me as cast-offs, and a small one I got at an orchid society meeting ... all of them seem happy in loosely-packed sphagnum moss, but these only get misted enough to dampen the moss, every few days/once a week. Eventually I'll pull these guys out and get them into bark as well, but I want a mix with smaller pieces.

If you can figure out a way to soak the pot once a week, you will provide the humidity the roots need. Remember that the RH in the room vs. the RH inside the pot are two different things. The bark is providing humidity to the roots over the course of days. The key is to figure out when you need to re-soak the pot to keep the plant happy. You can do things like putting the plant inside a cache pot to hold humidity close to the plant, or cover the top of the mix loosely with sphagnum moss. I do this in the winter, when things REALLY get dry.

Generally, I soak mine once a week, and I mist daily (except on weekends, when I'm not here). I would think that Florida would be a bit more humid, so you could go a few days between misting, and maybe even between soakings, but take a look at your mix and make your best judgement. See-through pots help determine if your mix has dried enough.

Florida is humid but the AC in the house is very dry. I am changing the sphagnum moss by fir bark, I have seen rot roots, I feel nervous.

My plants are in sphagnum moss and I want to change it.