Vanda Sanderiana. What to do??

[hanzy08]

I just acquired this beautiful Sanderiana and being in the greenhouse they are usually potted in plastic pots with bark and spag. I don't like the way the media looks as it seems very fine underneath and I don't know how the roots are doing and there's also algae forming around the pot. I have learned not to disturb vanda's roots and/or change the media because the roots are going to die and it will set the plant back for a year or more and being this is a species, it is more sensitive and grows slow. It looks healthy and growing well though. A plant this size should have flowered already but I don't see any old spikes..
[IMG][/IMG][IMG][/IMG][IMG][/IMG]