Neon tetras are small tropical freshwater fish with bright red and electric blue colouration. They can be seen in virtually every tropical fish shop around the world and sell in their millions every year.

Are tetras considered tropical fish?

Tetras are a common freshwater aquarium fish that originate in Central America, Africa, and South America.

Do tetras need a heater?

Do Neon Tetras Need A Heater? One of the most important tools and pieces of equipment for Neon Tetra temperature balance is an aquarium heater. They are tropical fish, and therefore need to be kept in heated aquariums.