Step #5 : Choosing fish for your aquarium
Now you've got your aquarium ready for fish. But remember, only add a few fish at first. It takes time for the aquarium to develop the natural balance required to handle a full tank of fish. If you add too many fish at once, they will pollute the water, get sick, and may even die. Don't make this common mistake! For example, start a 10-gallon aquarium with about six hardy fish. Choose peaceful varieties like swordtails, guppies, tetras, and barbs. Other beneficial fish are bottom scavengers, such as a Corydoras catfish, which live on the bottom, foraging for food in the gravel. Pleco catfish and flying foxes help keep the aquarium clean by eating algae that grows on plants, rocks and the glass. Use your local pet shop as a resource to help you select the best fish for your aquarium.
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