80g. Cylinder Tank Lighting HELP!

[Telford]

80g. Cylinder tank that is covered with a wooden lid. I currently have 4 t5's retrofitted under the canopy. The measurement of the tank/lid across is just over 28". I have about 5" of depth to work with.

I want to somehow get a MH under the lid but having a hard time finding something that will fit. Then i don't know if a halide will heat up the tank too much being under a lid? I also don't know if they get to hot to be mounted onto a wooden lid? Do i need to supplement halide with t5 still? Finally i don't know if it would be that much better then the T5's?

I found this possible solution...

http://www.bulkreefsupply.com/Metal-...duct_info.html

Here are a few pictures to give you a better idea of what i'm dealing with. Thanks in advance for any suggestions/comments.

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