Animals

Frog in the aquarium
Aquarium frog

Frogs and crabs in the aquarium

Frog in the aquarium

If you want to make your aquarium more interesting, you can add a frog or a crayfish or crab. There are a number of different freshwater crayfish, but they require a landing site that is out of the water and are therefore a little more difficult to keep. Most frogs also need land, but there are varieties that can live entirely in water. 

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