Here are some more pictures of the tank cover.
I got the doors sized down and installed. I also put a coat of stain on it to try to match the tank the best I could. Also I have started the wiring for the lighting. The flourescent lights ballast are mounted inside of the plenum, but are set on "studs" to keep the ballast of the wood back about 1/2 inch. All the wiring is inside the plenum also. The five switches on the right on the plenum are for the 2 fans, 2 actinic tubes, 2 50/50 tubes, and the Metal Halides. They are ON-OFF-ON switches. I intend to make the lighting automatic when I get the PLC set up to control all of this. So up position will be ON (manual), the center position will be OFF, and the down position will be AUTO (working off the PLC). The Metal Halide ballasts are going to be mounted under the tank in the stand. They weigh too much to put into the hood.
Unfortunately I did not make a cut sheet for the wood cuts, I made a rough drawing and kinda built it as I went along. I will when I am finished make up something with all the demensions along with a wiring diagram for the lights and fans.
I used a type of ballst for the MH
's called a F-Can Ballast. Basically it is a self contain fully enclosed ballast. Looks identical to a flourescent ballast just bigger and heavier. They are made by Advanced Ballast, Catalog # 72C5581-NP. I am still waiting on the bulbs to come in, and I am still looking for some reflective metal to put on the inside of the cover.