Terete Vanda help

[Luxanna_crown]

Hi everyone I got some vandas that I need help with i attached a photo i plan to house it in some medium fir bark, coarse perlite, charcoal and some sphagnum moss. Is this potting mix okay? I really don’t want these to die so any help would be appreciated, also in the photo some of the leaves seem to be drying at the tips so I’m going to give a soak in water for a few minutes