1. Keep saltwater fish out of your freshwater aquarium. Under no circumstance, should life (including plants) from one type of water be mixed with the other. Swapping creatures from one environment could be deadly and extreme care should be taken to ensure 100% compatibility within a single tank.
2. Take full advantage of aquarium accessories. Things like filters, heaters, lights, and air pumps help you keep an aquarium clean and healthy for the little creatures that live inside of it. Once you strike a balance with these accessories in a way that they work together naturally, you’ll see that your fish will thrive as though they were living in their own environment!
3. Don’t overstock your tank. Overstocking an aquarium can be deadly – ecologically and behaviorally speaking. Remember that a successful aquarium is a delicate balance of water, oxygen, food, light, and room to grow. An aquarium with too many fish will upset that balance and create unhealthy living conditions, disease, and of course aggressive behavior. Basically, your aquarium should hold no more 1 1/2 inch fish per square inch.
4. Keep your “cool.” Many aquarium enthusiasts recommend that you use a combination of thermometers at one time to get an accurate reading. Your goal aquarium temperature should be at least 70° F (21° C). If it takes more than one thermometer to reach that goal – then it’s an investment well made.
5. Plants are important too. Tank plants do much more than sit “pretty.” In addition to supplying oxygen, aquariums give fish something to nibble on, work to prevent algae growth, and give aquatic life a natural place to spawn. Plants even play a part in successful filtration by consuming the carbon dioxide that fish put into the water and emitting oxygen. You can fill your aquarium with plants and provide a helping hand toward the birth of a naturally occurring ecological system.
6. Let there be light! Generally, your fish should be exposed to light at least twelve hours every day but again, the specifics depend upon the type of fish and aquarium that you have. This schedule benefits your aquatic plants as well since they use this light to absorb carbon dioxide in your tank and release oxygen to your fish!
7. Carefully pick your fish. Almost each kind of freshwater aquarium fish has individual needs, specific food preferences, and characteristic behaviors. And it’s in your best interest to take the time and study the differences among them before you rush out, grab a bunch, and pour them into your tank. This is of utmost importance when you want to experiment and create an aquarium containing different types of fish. Some of these guys just don’t get along with other species while others are prone to gobble up the entire crew!