I haven't had a tank in years and when I did it was a 10 gallon. Now that I am interested in setting up a new one I was interested in going between 55 to 75 gallons. I was wondering if that is to big for a freshwater tank? Also, what kind of filter would I want to use for a tank that big, would it be just a bigger version of what is used on a 10 gallon tank? I was also wondering what you do for a lid on a 75 gallon tank, I've seen 55 gallon tanks with 2 hoods and you simply lift the door in the front to access the water, does a 75 gallon tank come with something similar or does it need a custom hood made for it. And finally, I am fresh out of college and don't have much money to work with, I recently saw 75 gallon tank at petsmart for 200 bucks, not sure if it comes with a hood like the 55 gallon I saw at the same petsmart did. I' m not sure if that is a reasonable price or not or how much more I would need to put into this (filter, gravel, etc). In terms of what I would want to put in the tank, I'm looking to put some turtles and fish in it, pretty basic, but I like the big tanks (nicer to look at). Thanks