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tetras per gallon of water

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Tetras are one of the popular home aquarium fish. The tetra fish are inhabitants of different regions such as Central America, South America, and Africa. These fish are one of the hardiest fish that you can keep in your tank. The experts, as well as beginner fish keepers, prefer the tetras. However, one of the common arising questions is how many tetra fish can you keep per gallon. This is also one of the tricky…