You have to decide if the animals you plan to keep will require MH ... if the answer is yes then muffin fans are usually all that is required and/or adjust the height above the water of the hood. If you have a sump some people put the fans there instead of the hood ... and of course there is the chiller route ( mucho dineros ).
Alot of us in Calgary go with larger systems and keep them in the basement ... as Alan has said the temps of the basements are just about right for reeftanks without having to spend big bucks on chillers.
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Steve
“The most important decision you make is to be in a good mood.”
― Voltaire
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