"Discus don't cost thousands of dollars, but they are properly one of the most expensive fish you will see in tanks of your ...

Some of the most expensive Bettas in the world are crown ... if it’s an adorable baby elephant flying around your fish tank ...

As far as fish go, the Asian arowana is one of the most expensive aquarium species sold in the pet trade. It is a freshwater fish that has people paying in the tens of thousands of dollars for the ...

Anything strike you as special about this fish here? Well, it's worth 1.8 million dollars. It won grand champion at the All Japan Koi Show in 2017, and is the most expensive koi fish ever sold.