In the past 20 years there has been an increased fascination with marine life. This has meant that instead of people going out fishing to catch fish to eat, they try and keep them in pets in fish tanks all around the world. Although in most states this is in fact illegal it hasn't stopped them trying regardless. If you've jumped on the marine life keep at home bandwagon, your first point of call should be research. Research to find out what container or more specifically, what type of saltwater aquarium you're going to buy in order to house the fish appropriately. There are a heap of different options available to you but most if not, all depend on the type of marine life you wish to keep. Saltwater marine life has typically much harder to keep as their more difficult to maintain to keep the fish alive. The temperature and saltwater conditions have to be perfect in order for the fish and marine life to survive. If you're looking at keeping standard freshwater fish, then you can opt for the more basic fish tanks.
There are two major fish tanks you can purchase if you're looking to house saltwater marine life. Simple glass containers with a silicone base will do the job and their much cheaper than the other variety and that being, acrylic saltwater tanks. Acrylic saltwater tanks are much stronger built and are able to withstand the weight necessary to house both the water and marine life appropriately. Their core temperature is also easier to maintain as the plastic sheeting used to house these fish tanks are less prone to temperature fluctuations.
Another thing you'll have to think about also is how much marine life you actually want to house. The amount of fish, coral life, plants etc you want will help determine the size of the container that you'll have to buy. If you have the money and want to go all out, expect to pay somewhere in the vicinity of $5000 for an acrylic saltwater aquarium. If you want to be a little bit more sensible then it's recommended you start off slow and get a basic setup first. In this way, you'll learn how to keep the fish and marine life around without worrying about making a too big of a mistake and killing them accidentally. Too many people rush out because they jump on the latest big then and then all of sudden, accidents occur and they've spent a great deal of cash for no reason other than to harm this marine life. Do more research before you go out and make the big spend. In that way you'll be best equipped to know what's required and know what's not. It's that simple.