I have been considering semi hydro and have also looked into water culture. Is there any reason why i cant grow some orchids hydroponically? Is there any benefit to semi hydro vs hydro?
No, there's no reason why you couldn't. Yes, there are benefits to semi-hydro. The main benefit (and the only reason why most would advise against conventional setup) is that individual plants don't share fertigation water. In a conventional hydro set-up viruses can and will be spread easily. The other big benefit is that the plants are portable and can be moved to different areas depending on cultural requirements.
A crop of jalapenos are all the same. An orchid "collection" is bound to have varying cultural needs. If you had several of the same type, say a dozen Phals and that's it, it may work.
Makes sense. I wanted to get my dendros in a hydro setup. Thought about going with water culture with the oncid then semi for the others. Do Paphs and phals and cymbid do well with semi? I hear they dont do well withy hydro or water culture cause the leaves are so close to the base that they can get bacteria buildup in the crevices. Should i be removing the sheathing on the base of the dendros for a hydro setup?