How Many Fish Can You Put in a 20 Gallon Tank? ~ Overcrowded Fish Tank | Territorial Fights

How Many Fish In A 20-gallon Tank? A 20-gallon fish tank could be a great additional display in the living room. It simply shows a glimpse of the beauty that lies in the underwater world. But a 20-gallon tank can be too little for the fish, especially those who have territorial problems.

An overcrowded fish tank will create problems like a dirtier environment, territorial fights, and stress among the fish. So you have to be resourceful enough to determine what kind of tropical fish to put inside the aquarium.

What’s included in a 20-gallon tank is a variety of live plants that may add the aquarium’s beauty. If you desire to make the fish aquarium a bit interesting, then never overcrowd them. It is because you might be losing one fish and another if you’ll stick them in one place.

Choose the best fish that can live with each other in a small room, and that’s where research will come in to help you with your decisions. Every fish deserves a place where they can properly breathe and swim freely and creating too little ecosystem for them and being overpopulated. It might be the reason for your fish’s sudden death.

Consideration About Fish’s Physiology

It would be helpful if you consider some fun facts about fish, especially not all of them have the same temperament and comfort zones. Fish like fighting fish, live up to their name as they are fighting to what they consider their own.

There are many aggressive, predatory, and community kinds of aquarium fish, but what’s more important is to match their temperaments together to avoid killing each other. Another example, if you placed a predatory fish full of community fish, then expect that no community fish will ever survive.

Another factor that you have to consider is the pH requirements and temperature comfortable for the fish. When it comes to pH level, tropical fish can adjust to it very easily while the cold-blooded fish have their specific range of pH levels. As for the temperature, goldfish is the most versatile because it can adjust its body temperature to the water temperature.

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