Salt Water Tank
Salt Water Tank2007-11-24 23:40:12
http://www.aquariacentral.com/
http://www.aquariumboard.com/forums/home.
You can do saltwater in a 20 gallon tank. Just keep in mind the smaller the tank the faster that things can go wrong. I would start with the biggest tank that you have room for. Its expensive but very worth it. I have had a salt water tank for 4 years now and after the first year went to a bigger tank. After the tank is established it becomes fairly easy to care for. Do some research on saltwater. There are some great web sites for reading up on saltwater. This is my favorite, www.reefcentral.com
Good Luck.
I've done it with a tank that small but you really have to be dedicated and detail oriented. Make sure you have a good chemical testing kit and use it weekly. Start your tank with "blue damsels" and don't be in a hurry to add other fish for at least a month or two. Make sure the fish and invertebrates are compatible with each other. Your pet store will be a good source of information (of course they'll try to talk you into getting a larger aquarium).
Having a saltwater tank is much different than fresh water. Many people have what is called a "Nano" tank, which is just a small tank like your 20g tank. This sounds nuts, but it's harder to keep up a 20g tank than a larger tank. check on http://www.reefcentral.com about a nano tank. You will be limited on what you can keep in it, maybe a shrimp, some snails or crabs, and maybe one or two small breed fish like a firefish or clown.