New Delhi, Dec. 17 -- If you want a colourful fish tank in your house, there are a lot of fish species to choose from. These fish would not only draw the attention of any visitor to the fish tank but would also liven up your daily life.

Here is a list of six neon-bright freshwater fish species that you can opt for when trying to build a colourful aquarium in your house.

These colourful fish are native to South America and have an attractive bright red and blue-green colour. The reason these fish are great as pets is that they are peaceful and compatible with other fish in a tank. Just make sure your fish tank has enough lighting to make the colours of this species properly visible.

People can confuse the cardinal tetra with the neon te...