Initial plan for new terrarium

[DesignerofBeauty]

Hello Everyone,

I'm in the process of creating a tiny orchid terrarium. So this terrarium has been a little over a year in the works. I haven't built a orchid terrarium/vivarium before. However, I'm hoping this one will be successful. I'd like to get your input before I put this all together. I have the orchids, terrarium (8x8x12 inch) and hygrolon (wicking medium) on hand. There are a few supplies I'll need to buy: egg crate and spray foam.

Here's my plan: I'd like to create a false bottom with the egg crate. I'd like to have a "floor" to the terrarium, so i'll use a mesh/screen to separate my floor substrate (ABG). The bottom of the terrarium will have ferns/other non epiphytic plants. The walls of the terrarium will be egg crate that is sprayed with foam. I'll put the hygrolon on top securing with skewers or aquarium glue. My orchids are from mostly from Andy's and are mounted on sticks/slabs. I'd like to keep their original mount because they look pretty. I have a few that aren't mounted on wood, and they'll be attached with moss on top of the hygrolon. In between the orchids I'll have other epiphytic plants.

I've attached a diagram showing the placement of the orchids, their cultural requirements, and the light conditions present where I plan to place them in my tank. Here's a list of the orchids:

Schoenorchis scolopendria
Angraecum distichum
Gastrochilus japonicus
stereochilus brevirachis
dyakia hendersoniana

This being said, the orchids I have bought require that they dry out slightly. I did this on purpose. This tank is so small, that I don't know if I'll be able to pump a humidifier into it. I plan on spraying the orchids as needed with distilled water and 1/4 strength MSU fertilizer on a weekly basis. I'm hoping the false bottom and regular spraying is enough to keep the moisture levels sufficient. For air circulation, I plan to open the terrarium for a period of time each day. In addition, the top hood leaves about an inch clearance. The tank runs at around 80 degrees F when the lights are on.

If you have any suggestions, please let me know. If you guys think this will work out well, I will make a future post detailing how I set this all up. I wouldn't be able to get all this information on setup without you guys, so thank you!