Hi everyone. I'm thinking of getting a Petco Bookshelf Aquarium. It is 6.6 gallons and comes with hang on the back filter and hood with a good light. I plan to have a sand sub straight with grass like live plants and maybe a piece of drift wood. My question is can you really trust the small heaters for this size aquarium and does this set up sound good to you? The tank will house one plakat betta and maybe some algea eating shrimp when that begins to grow.[h=1][/h]