Giant Gourami And Arowana – Your Ultimate Monster Fish Tankmate Guide
Ever gaze at a massive aquarium and dream of housing the true kings of the freshwater world? There’s an undeniable allure to “monster fish,” and few pairings are as visually stunning and awe-inspiring as the majestic Giant Gourami and Arowana.
But let’s be honest, the thought of putting two such powerful, large, and potentially aggressive fish together can be intimidating. You’ve probably wondered if it’s even possible without constant conflict, or what it truly takes to create a harmonious environment for these aquatic giants.
I promise you, it’s not only possible but can be one of the most rewarding experiences in the aquarium hobby. This comprehensive guide will walk you through everything you need to know, transforming your dream of a breathtaking monster fish tank into a successful reality.
We’ll cover the essential tank setup, feeding strategies, how to manage their temperaments, and the long-term commitment required. Let’s dive in and build the ultimate home for your future centerpiece fish!
Why Pair a Giant Gourami and Arowana? The Surprising Benefits
Before we get into the “how-to,” let’s talk about the “why.” Combining these two species isn’t just about housing two big fish; it’s about creating a dynamic and balanced display. The benefits of giant gourami and arowana cohabitation are what make this pairing a holy grail for many enthusiasts.
First, they occupy different levels of the water column. The Arowana is a classic surface-dweller, gracefully patrolling the top of the tank with its sleek, prehistoric form. Its eyes are even positioned to look upwards for prey.
The Giant Gourami, on the other hand, tends to inhabit the middle and lower sections. This creates a visually complete aquarium, with impressive activity at every level. Your eyes will constantly be moving, following one majestic fish and then the other.
Their contrasting body shapes and swimming styles also add to the appeal. The long, serpentine Arowana provides a beautiful contrast to the deep-bodied, powerful, and more deliberate Giant Gourami. It’s a living work of art that is both powerful and serene.
The Foundation of Success: Tank Size and Setup
Let’s get the most important point out of the way first: you need a massive tank. This is non-negotiable. Keeping a giant gourami and arowana requires a significant investment in space and equipment from day one.
A juvenile pair might look fine in a 125-gallon tank for a few months, but they grow incredibly fast. Planning for their adult size is the most crucial step in this entire journey.
Tank Dimensions: Go Big or Go Home
For one adult Giant Gourami (up to 28 inches) and one adult Silver Arowana (up to 36 inches), the absolute minimum tank size is 300 gallons. However, to truly let them thrive, an aquarium of 400-500 gallons or more is highly recommended.
More important than just volume is the tank’s footprint. A wide and long tank is far better than a tall, narrow one. A tank that is at least 8 feet long and 3 feet wide will give the Arowana adequate room to turn around without stress.
Filtration: The Unsung Hero
These are large, predatory fish with a massive appetite, which means they produce a tremendous amount of waste. This is what aquarists call a high “bioload.” Your filtration system must be an absolute powerhouse to keep the water pristine.
- Sumps: A large sump is the gold standard for monster fish tanks. It adds significant water volume and allows you to customize your filter media for maximum biological, mechanical, and chemical filtration.
- Canister Filters: Using one or two high-capacity canister filters is another excellent option. Look for models with high flow rates and large media capacity.
- Water Changes: Even with top-tier filtration, you’ll need a strict water change schedule. Plan for weekly changes of 30-50% to keep nitrates low and the water healthy.
Aquascape and A Secure Lid
When it comes to decor, less is more. These powerful fish can easily injure themselves on sharp rocks or re-arrange your entire aquascape overnight. Opt for large, smooth driftwood and big, rounded river stones that are too heavy for them to move.
Most importantly, Arowanas are notorious jumpers. A heavy, secure, and fully-covered lid is not a suggestion—it’s a critical piece of safety equipment. A gap large enough for an Arowana to launch itself through is a disaster waiting to happen.
Your Comprehensive Giant Gourami and Arowana Care Guide
Once your tank is set up, the real fun begins! This giant gourami and arowana care guide will cover the day-to-day best practices for keeping your giants happy and healthy for years to come.
Diet and Feeding Strategy
You’re feeding two very different appetites. Arowanas are primarily carnivores, while Giant Gouramis are omnivores with a love for vegetable matter.
- For the Arowana: A high-quality floating pellet or stick formulated for large carnivorous fish should be the staple. You can supplement with treats like frozen shrimp, krill, and earthworms. Avoid live feeder fish, which can introduce disease.
- For the Giant Gourami: Offer a high-quality sinking pellet for large omnivores. They absolutely love fresh vegetables! Try offering blanched zucchini, spinach, and shelled peas. This keeps them healthy and can reduce any nippy behavior.
- Feeding Time: Feed them at the same time but at opposite ends of the tank to minimize food aggression. Drop the Gourami’s sinking food in one corner while offering the Arowana’s floating food in the other.
Growth Rate and Long-Term Planning
These fish don’t stay small for long. A young 4-inch Arowana can easily hit 18-24 inches in its first year. The Giant Gourami’s growth is a bit slower but just as steady. This rapid growth is why starting with a massive tank is so vital. You cannot “grow a fish into a tank”—you must provide them with their adult-sized home from the start.
Navigating Temperament: How to Giant Gourami and Arowana Cohabitate Peacefully
Now for the million-dollar question: will they get along? Generally, yes! This is a classic monster fish pairing for a reason. Their differing water column preferences help a lot. However, success depends on understanding their individual personalities and following a few key giant gourami and arowana tips.
Choosing the Right Individuals
The best way to ensure peace is to introduce them to the tank at the same time while they are both juveniles and of a similar size. A large, established Gourami might see a small, new Arowana as a threat or even food, and vice-versa.
By letting them grow up together in a massive environment, they are more likely to establish a peaceful hierarchy and accept each other as tank mates rather than competitors.
Signs of Aggression and What to Do
Keep a close eye out for any signs of trouble, especially in the beginning. This includes:
- Constant chasing or stalking
- Nipped or torn fins
- One fish hiding constantly or refusing to eat
If you see minor squabbles, try rearranging the decor. This can break up territories and reset the power dynamic. If aggression is severe, you may need to use a tank divider temporarily until they calm down. This is one of the most common problems with giant gourami and arowana, but it is usually manageable.
Common Problems and Proactive Solutions
Even with the best planning, you might run into a few bumps. Here are some common challenges and how to get ahead of them using some proven giant gourami and arowana best practices.
Problem: My Giant Gourami is a picky eater and ignores pellets.
Solution: Try soaking the pellets in garlic juice (a natural appetite stimulant) or start by offering more of the fresh veggies they love, slowly mixing in pellets over time.
Problem: My Arowana scraped its nose on the lid while jumping.
Solution: Ensure the water level isn’t too high—leaving a 6-8 inch gap can discourage casual jumping. Treat the injury with clean water and a stress coat additive to prevent infection.
Problem: The nitrates in my tank are always high.
Solution: Increase the frequency or volume of your water changes. Add fast-growing live plants like Pothos with their roots in the sump or filter; they are excellent at absorbing nitrates.
Sustainable and Eco-Friendly Giant Gourami and Arowana Keeping
As keepers of these magnificent animals, we have a responsibility to be mindful of their origins. A core part of being a great aquarist is embracing sustainable giant gourami and arowana practices.
Whenever possible, purchase captive-bred fish. This reduces the pressure on wild populations. Many species of Arowana are CITES-listed (Convention on International Trade in Endangered Species), meaning their trade is regulated to protect them. Always buy from a reputable dealer who can verify the source of their fish.
Thinking about an eco-friendly giant gourami and arowana setup also means considering energy use. Use energy-efficient LED lighting and properly sized water pumps to minimize your environmental footprint. Finally, never release an aquarium fish into the wild. If you can no longer care for them, reach out to a local fish club or specialty store for rehoming.
Frequently Asked Questions About Giant Gourami and Arowana
What is the absolute minimum tank size for a Giant Gourami and Arowana?
The absolute bare minimum for fully grown adults is a 300-gallon tank. However, a larger footprint (8ft x 3ft) and a volume of 400+ gallons is strongly recommended for their long-term health and well-being.
Can I keep a Silver Arowana with a Red Tail Giant Gourami?
Yes, this is an excellent and popular combination. Both species have similar temperaments and care requirements, and their colorations contrast beautifully. The same rules of introducing them young and at a similar size apply.
How do I stop my Giant Gourami from bullying my Arowana?
Bullying can sometimes occur if the Gourami feels its territory is being invaded. Ensure the tank is large enough with plenty of open swimming space. You can also try rearranging large pieces of driftwood to break lines of sight. Ensuring the Gourami is well-fed, especially with vegetable matter, can also curb aggressive tendencies.
What should I feed them to ensure they are both healthy?
A varied diet is key. Use a high-quality floating pellet for the Arowana and a high-quality sinking pellet for the Gourami as their staples. Supplement the Arowana’s diet with frozen foods like krill and shrimp. Supplement the Gourami’s diet with fresh greens like blanched spinach, zucchini, and peas.
Your Journey with Aquatic Giants Awaits
Keeping a giant gourami and arowana together is undoubtedly a major commitment. It requires space, powerful equipment, and a dedication to maintaining pristine water. But the reward is a truly breathtaking display of nature’s power and grace right in your own home.
By following this guide, you’ve taken the first step. You understand the importance of a massive tank, the need for robust filtration, and the strategies for fostering a peaceful community.
Don’t be intimidated—be prepared. Plan carefully, invest in the right setup from the start, and you will be rewarded with a living masterpiece for many years to come. Go forth and create something spectacular!
