, or perhaps the Siamese battling fish is the most popular. These awesome little tropical fish are great for small aquariums, and you'll find them in just about any pet store. Marbled river stingrays are one of many rarest fish on the earth. They spend most in their life buried https://www.tumblr.com/aquariumonlinestore/764679416630673408/how-to-maintain-a-2-feet-aquarium-bigger-fish