advice please on orchidarium

[reefmale]

hiya guys , i was wondering if any of u could give me sum help on orchid tank. i have 500 litre tank which i have begun to adapt to orchids, i have 2 terra fans installed on the back glass faceing the front of the tank. i have 2 sonic humidifiers in a tetra water fall, 2 x 30 w light tubes ( plant grow and warm day light) an inch layer of forrest bark on the bottom of the tank which i intend to lace with staph moss this week, a thermomiter and hydrometer. most of my orchids are going to be mounted onto cork bark. i am also going to cover the sides and top of the tank with reflective sheeting they use for hydroponics. does this sound like a good set up any advice on anything else i should have or being doing, does it sound ok, any advice would be gratefully recieved.
dave