We suggest you choose one of the standard manufactured aquariums such as 75 Gallon Aquarium or 55 Gallon Aquarium rather than consider a custom installation, first, because manufactured aquariums come in a variety of sizes and many handsome styles to fit any location; second, the cost of these is relatively low and accessories are readily available; third, they allow you to change location or arrangement without excessive fuss or bother. When you become more experienced you can then decide if you want a custom installation. In selecting your aquarium there are three things you must consider. Where you are going to locate it; what size will be right; and what style you should choose. As there are certain conditions that must be observed in order to have a successful aquarium, we will discuss location, size and style separately.