I am thinking about purchasing a wood canopy & retro fitting T5 lighting for my 55 gal tank vs purchasing a Tek light (4 x 54). I am looking for some pros and cons. I am not sure if the savings on retro T5's would equal out with the purchase of a canopy. I heard a canopy setup may have heat issues. Would that mean I would need a fan? Any additional items that I may need to evaluate in my decision? Also, if anyone can recommend a site with reasonable canopies for a standard 55 gal (48 x 12 x 20(?) ). I am not interested in making my own (too much work). Thanks.