Monster Fishes to Keep in Your Aquarium

If you're looking for a truly unique and eye-catching addition to your home aquarium, then a monster fish may be the perfect choice for you. However, for those who are up for the challenge, keeping a monster fish can be a rewarding and fulfilling experience.


Known as the giant of the Amazon, showcases a sleek body and impressive size up to 10ft. Its prehistoric appearance and majestic presence make it a true monster fish.

Red-Tailed Catfish

With its vibrant red tail and enormous size, the Red-tailed Catfish is a sight to behold, can reach up to 5ft. This South American native possesses a unique personality that adds intrigue to any aquarium.


Often called the "dragon fish," which can grow up to 3-4ft is famous for its elongated body and striking scales. Its graceful movements and stunning colours make it a captivating addition to your aquarium.

Tiger Shovelnose Catfish

With its tiger-like stripes and long snout, showcases a mesmerizing pattern. Its active nature and compatibility with large aquariums as it can grow up to 3ft make it an impressive choice.

Peacock Bass

Hailing from the Amazon basin, the Peacock Bass displays a mesmerizing array of colors and a fierce personality. Its aggressive feeding habits leading to growth of up to 3.3ft and the powerful presence make it a true monster fish.

Alligator Gar

Gars are a diverse group of freshwater fish that can grow up to 10 feet long. Gars are carnivores, and they need to be fed a diet of live fish or other meaty foods.


Renowned for its intelligence and expressive behavior, the Oscar Fish captivates with its ability to recognize its owner. Its vibrant colors and interactive nature make it a fascinating monster fish to keep. Oscar can grow up to 16 inches.

Gulper Catfish

The Gulper Catfish, also known as the "Tadpole Catfish," possesses an enormous mouth capable of gulping down prey. Its unusual appearance and fascinating feeding habits make it a true monster of the deep. It will eat anything as long as its mouth fits.

Each of these magnificent creatures brings a unique charm and sense of adventure to your aquarium, captivating both young and old.