All the ways you've maintained even moisture in semi hydro...

[MrHungx]

I've always had problems with my cattleyas not adjusting to semi hydro because of the dry line. I originally started out with growing indoors, but increasing the relative humidity is not an option for me since I am sensitive to mold. I moved within the last year and can only grow most of my orchids outside. My temps range anywhere from 100+ Fahrenheit in the summer to the 20s in the winter. I initially used a top dressing of sphagnum moss to keep moisture in the pots, but am finding that they decompose too rapidly. I have also experimented with mixing Growstone with the LECA to improving wicking capabilities, but I am also experimenting with using Growstone as a top dressing instead of sphagnum.