Thank you once again. I also really like the dimensions of the 40 long tanks, but it may be more difficult to find locally. That is good point about the 55, being able to find tops, fixtures, etc. more readily.
A friend of mine is trying to sell me his 72 gallon bow front, but that seems like too much tank for me at the moment.
i atight cover is your best friend in cool weather....ant drafts can take away lots a heat from the surface of the aquarium....and as temps cool the air usualy becomes dryer hence evaporation...sometimes i cut a piece of old styrafoam to fill in the back of my glass tops in really cold times....and as far as tanks go i like the 40 gallon breeder as it has much floor space and a shallow depth for better light penetration....but if its for comunity fishes and nothing large a 55 works great....it is quite a show and piecese that fit a 55 are more readily available....you can do 2 24 inch tops and fixtures or get a 48 inch flourescent top for really cheap swap out one bulb for a 6500kelvin tube from a hardware store for a few bucks and your ready to roll...dont like the looks get or build a canopy...once again the 55 is a pretty universal build....i am sure i will see yah around...ADIOS..
if you ever do want to do that many tanks and not rack up the power bill is to run a sump underneath that pumps the water up through a spray bar or tubing and then drains through gravity to the sump resivour wich is heated...one heater X-tanks....the same with my filters i run one pump and a gang valve to sponge filters...you can add more filteration on the sump to polish the water..