sure you can!! I add husk to my alley mix which is 70 % bark 15 % charcoal 5% spongerock 5% hydroton and 5% of the CHC..I dont use too much of the husk bec I'm using spongerock and hydroton bec I like to water my plants..alot..So I tend to use more bark and charcoal..I don't count the lava rock and marbles that end up in the pots
..my girlfriends kid likes to store his marbles in my plants..dont ask me why..but If I keep reading about hydroton LECA and all that fancy stuff here with such great results..I might go S/Hydroponic..But what I have does well with what I have been doing so Im going to leave it alone for now and just take notes...
make note to self..be careful smelling the nodosas in bloom bec the leaf spikes will go right up yer nose and the orchid draws 1st blood...