ORCHIDARIUM QUESTIONS

[MARIAOB]

I am finally ready for a new project . Last year I purchased an oceanic fish tank with the following dimensions ( 21"H x 20"W x 18D ) that I would like to turn into an orchidarium/vivarium . I will be making a false bottom with a small pond with a watter feature. I have all materials ready exept for lighting. Very very concerned about lighting as I am not sure how much light I would need for my Den. Jenkinsii which I have currently growing outside in full sun . I would also like to put some mini catts in the orchidarium.
Please help to figure out how much light I would need for these high light orchids. I live in NJ so my little Den. jenkinsii would eventually have to be brought in from outside .
Hese is a pic. of what I would like to have it look like but with a watter feature.