Peacock bass are some of the most striking freshwater fish out there. Known for their vivid colours, bold patterns, and sheer size, they’ve become a prized addition for aquarists who love a challenge. But before rushing to find Peacock bass for sale, it’s worth understanding what it really takes to house them in a custom aquarium. These fish are not for beginners. They demand serious care, attention, and the right setup to thrive.

Tank Size Matters More Than You Think

Peacock bass grow big. We’re talking about a fish that can reach over two feet long in captivity. That’s no small deal. A standard home aquarium just won’t cut it. Instead, you’ll need a custom tank with at least 200–300 gallons of water. Bigger is always better since these fish need room to swim. Without enough space, they can quickly become stressed or aggressive, which isn’t good for their health or your setup.

Choosing the Right Filtration System

With large fish comes a heavy bioload. Peacock bass produce a lot of waste, and poor filtration can quickly lead to dirty, toxic water. A powerful canister or sump filter system is usually the way to go. The goal is crystal-clear water with stable parameters. Many keepers even double up on filtration to keep things balanced. Skipping this step is one of the biggest mistakes new owners make.

Lighting and Tank Setup

Unlike some fish that love bright lights, Peacock bass prefer a natural environment. Moderate lighting works best. You don’t need a fancy setup, but the right lighting can help highlight their gorgeous colours. As for aquascaping, go simple. These fish are active hunters and don’t do well in tanks cluttered with decorations. A few sturdy rocks, driftwood, and open swimming space make for a comfortable setup. Plants usually don’t last long with these big predators around.

Behavior to Expect

Peacock bass are predators by nature. In the wild, they chase down smaller fish with incredible speed. In a tank, they’ll do the same. This means tank mates are tricky. Smaller fish will almost always become dinner. If you want to keep them with others, consider only other large, robust species that can hold their own. Even then, aggression is possible. These fish love to dominate their environment.

Feeding Peacock Bass

One of the fun parts of keeping Peacock bass is feeding time. They have big appetites and put on a show while hunting food. In captivity, they can be trained to eat prepared foods like pellets, but many still prefer live or frozen options such as shrimp, fish, or worms. Keeping a varied diet is key for their health. Overfeeding or sticking to only one type of food can lead to health problems.

Common Mistakes to Avoid

Many hobbyists make the mistake of underestimating the size and needs of Peacock bass. Buying one when you only have a mid-size tank is a recipe for failure. Another common issue is trying to overcrowd the tank. Remember, these fish are territorial, and they need space to feel comfortable. Also, skipping regular water changes or relying solely on filters can lead to ammonia spikes. Consistency is everything with these fish.

Why Custom Aquariums Are the Best Choice

A standard glass aquarium often won’t cut it for Peacock bass. Custom aquariums allow you to design a tank that fits their size, swimming habits, and environmental needs. You can plan the filtration, flow, and structure right from the start. This makes long-term care much easier. For many serious aquarists, it’s the only way to enjoy these stunning fish without constant headaches.

Final Thoughts

Owning a Peacock bass is an adventure. They’re powerful, beautiful, and truly one-of-a-kind. But they’re also demanding, which makes preparation essential. From choosing the right tank size to setting up strong filtration, every detail matters. If you’re considering bringing one home, make sure you’re ready for the responsibility. With the right setup and care, Peacock bass can be the crown jewel of your aquarium. So, when you see Peacock bass for sale, take the time to prepare properly. Your fish, and your sanity, will thank you later.