About 55 Gallon Fish Tanks
If you plan to have more than four or five medium-sized fish in a tank, then it is a good idea to invest in a larger tank. Most 55-gallon fish tanks are a good compromise between small and large tanks. Measuring approximately 48 inches long by 13 inches wide by 21 inches high, they are small enough to fit readily into the average home, yet they allow your fish plenty of room to swim freely. Putting too many fish into any tank disrupts the nitrogen cycle. This means that beneficial bacteria cannot filter enough ammonia out of the water, and ammonia build-up is fatal to your fish. It is a good idea any time you set up new aquarium fish tanks to add new fish to the tanks gradually, and to regularly test the ammonia levels in the water before adding new fish. With the vast inventory on eBay, you can find 55 gallon fish tanks in an array of different styles and shapes. If you plan to set up more than one tank, consider adding different shapes of tanks to add visual variety to your home or office.