15 Best Fish to Farm for Big Profits in 2026

Fish farming or aquaculture is no longer a niche industry for remote coastal communities. In 2026, it is a global powerhouse. Over 50% of all seafood consumed worldwide now comes from farms, and the numbers keep climbing. With wild fish stocks under growing pressure from overfishing and climate change, aquaculture is filling a critical gap in our food supply chain.

If you are thinking about starting or expanding a fish farm, one of the most important decisions you will make is choosing the right species. Get that right, and you are already halfway to profitability. In this guide, we break down the 15 best fish to farm with updated 2026 market context, honest farming difficulty ratings, and practical tips drawn from real aquaculture experience.

Best Fish to Farm in 2026

This guide has organized these by a mix of profitability potential, accessibility, and global market relevance. Whether you are working with a small freshwater pond in West Java or planning a larger commercial operation, there is something here for every scale.

1. Tilapia — The Beginner’s Best Friend

Ask any experienced aquaculturist for their top recommendation for a first-time fish farmer, and chances are they will say tilapia. And it is not hard to see why. Tilapia grows fast, eats almost anything, tolerates a range of water conditions, and has a mild, crowd-pleasing flavor that sells well in both local markets and export channels.

Indonesia is the second-largest producer of tilapia in the world, with an annual output of 1.4 million tonnes, and the government wants to push that to 2 million tonnes by 2029. The KKP’s Nila Salin program, which cultivates salt-tolerant tilapia strains in brackish coastal ponds, is opening up farming opportunities in areas that were previously underutilized.

For most freshwater pond farmers, tilapia can go from fingerling to market weight (around 400–600g) in just 5–6 months. Feed conversion ratios (FCR) are typically around 1.5–1.8, meaning it is not expensive to raise. If you are starting your first aquaculture venture in Indonesia, tilapia is still the safest bet.

2. Catfish — Low Cost, High Return

Catfish, particularly the locally-loved lele (Clarias batrachys) in Indonesia, is one of the most practical fish to farm. It is hardy, fast-growing, and incredibly adaptable. It can survive in low-oxygen water conditions where other species would struggle. This resilience keeps mortality rates low and operating costs manageable.

In terms of market dynamics, catfish is a staple of Indonesian street food and home cooking. Demand is consistently strong year-round, and the supply chain is well-established from farm to market. With a good FCR and relatively low feed costs, catfish farming can be profitable even at smaller scales, making it popular with backyard and semi-commercial growers.

One watch-out: catfish farming at higher densities requires strong water management practices to prevent disease, especially in the rainy season. But with proper care, it remains one of the most reliable income sources in freshwater aquaculture.

3. Salmon — Premium Price, Premium Market

Salmon is the jewel of global aquaculture. High in demand, high in value, and constantly sought after in international food markets. Norway dominates production, but there is growing interest and investment in salmon farming across other regions as recirculating aquaculture system (RAS) technology makes it more viable in non-traditional climates.

Be honest with yourself about the barriers to entry here. Salmon requires cold, well-oxygenated water and precise environmental controls. Initial capital costs are significantly higher than for tilapia or catfish, and the know-how required is more specialized. That said, the margins can be exceptional, particularly when targeting premium restaurants, hotels, or export markets.

Recent advances in RAS technology are helping some farmers raise salmon in tropical countries using land-based enclosed systems. It is not easy, but the investment trajectory in this space signals where the premium end of the market is heading.

4. Carp — Centuries of Proven Farming

Carp is one of the oldest farmed fish species in the world, and there is a reason it has never gone out of fashion, it works. Common carp (Cyprinus carpio) and its relatives are tremendously hardy, grow efficiently on low-cost feeds including agricultural by-products, and have strong demand across Asian and European markets.

In Indonesia, grass carp and common carp are often farmed in integrated rice-fish systems, where they provide pest control while being raised for food — a highly efficient dual-use approach. Globally, carp accounts for the largest share of aquaculture production by volume, particularly driven by China’s enormous output.

If you are after a species with a long track record, forgiving biology, and stable market demand, carp is a solid option. It is not glamorous — but it is reliable.

5. Rainbow Trout — Gourmet Appeal

Rainbow trout consistently commands a premium in gourmet food markets. Its delicate, slightly nutty flavor makes it a favorite for fine dining restaurants, and its high omega-3 content aligns perfectly with growing consumer interest in nutritious, heart-healthy food.

The trade-off is that trout requires clean, cold, fast-flowing water, which limits where it can be farmed. In Indonesia, highland areas in West Java, North Sumatra, or Sulawesi with cool freshwater streams are the most suitable locations. In January 2026, India’s largest RAS-based trout farm opened in Hyderabad, proving that advanced recirculating systems can make cold-water fish farming viable even in warm climates.

If you have access to the right water conditions, trout can be one of the most profitable species per kilogram. The key is finding your market, premium supermarkets, hotels, or export channels before you scale up.

6. Shrimp — Indonesia’s Aquaculture Goldmine

Technically not a fish, but shrimp deserves a prominent place in any aquaculture profitability guide, especially for Indonesian farmers. Shrimp farming, particularly vannamei (white-leg shrimp), is a cornerstone of Indonesia’s seafood export industry, with the US, Japan, and China being the major buyers.

Indonesia produced around 490,000 tonnes of shrimp annually, and the government has identified shrimp as one of its five key aquaculture priorities. The Kebumen-Central Java shrimp farming zone is being developed as a model for modern, area-based shrimp production. Margins can be excellent, but shrimp farming is not without risk. Disease outbreaks (particularly WSSV and EMS) can devastate a crop, so biosecurity management is non-negotiable.

Technology is helping significantly: companies like eFishery have developed cloud-based feeding systems specifically for shrimp and fish farms that optimize feeding schedules, reduce waste, and improve harvest outcomes. If you are serious about shrimp, smart feeding technology is worth every rupiah.

7. Barramundi (Kakap Putih) — The Versatile Choice

Barramundi, known locally as kakap putih (Asian sea bass), is one of the most exciting aquaculture species in Southeast Asia right now. It can be farmed in both freshwater and marine environments, giving you flexibility that few other species match. It grows fast, has an excellent feed conversion ratio, and its white, flaky flesh is increasingly appearing on restaurant menus across Asia, Australia, and the Middle East.

In Indonesia, barramundi is predominantly grown in sea cages, and advanced monitoring systems are being adopted to improve health outcomes and production efficiency. The species is particularly well-suited to the warm waters of coastal Indonesia, and its growing international profile means export opportunities are widening.

For experienced aquaculturists looking for a species with strong growth prospects and premium positioning, barramundi should be on your shortlist.

8. Bass — Restaurant Favorite

Sea bass and hybrid striped bass have earned loyal followings in the restaurant industry thanks to their firm, flavorful white flesh that holds up well across a range of cooking methods. The species can be farmed in both freshwater and saltwater environments, giving operators some flexibility in site selection.

The main challenges with bass farming are around water quality management, bass are sensitive fish that require well-maintained, oxygen-rich water, and finding the right market channel. Targeting premium restaurants, hotels, and seafood specialty retailers tends to yield the best prices. Build those buyer relationships before you expand your production.

9. Prawns — Rising Export Star

Freshwater and tiger prawns have been gaining strong traction as a premium aquaculture product, particularly in export markets where demand continues to grow. Unlike vannamei shrimp, which are typically farmed intensively in brackish coastal ponds, freshwater prawns (like Macrobrachium rosenbergii) can be raised in inland freshwater ponds, making them accessible to a wider range of farmers.

Prawns take longer to grow than shrimp, but they command a meaningfully higher price per kilogram, especially in the live or fresh-chilled segment. Japan, South Korea, and the Middle East are strong markets for Indonesian prawns. Successful prawn farmers often combine prawn production with fish polyculture to maximize pond productivity.

10. Goldfish — Profitable Ornamental Niche

This one surprises many people: the ornamental fish sector is actually one of the highest-margin segments in aquaculture per unit of production. Goldfish, with their wide variety of breeds and consistent demand from aquarium hobbyists, water garden owners, and ornamental fish traders, can generate strong returns from even a small farming setup.

Indonesia is a significant player in the ornamental fish trade, exporting a wide range of species to markets in Europe, North America, and the Middle East. Goldfish are relatively easy to breed in controlled conditions, reproduce prolifically, and do not require expensive feed. If you have limited space and capital but strong attention to detail, ornamental goldfish farming is worth exploring.

11. Mussels — Sustainable & Low Input

Mussels are quietly one of the most sustainable aquaculture options available. They filter-feed naturally, meaning you do not need to buy or formulate feed. Also, they live on what is already in the water. In fact, mussel farming actively improves water quality by filtering out excess nutrients and phytoplankton.

In coastal Indonesia, mussel farming has been practiced for decades using simple hanging or raft culture systems. Green mussels (Perna viridis) are the most commonly farmed species and have growing demand in both domestic and export seafood markets. Operational costs are low, making mussels an attractive option for coastal communities looking for a reliable secondary income stream alongside fish farming.

12. Hybrid Tilapia — Enhanced Performance

If regular tilapia is a reliable Toyota, hybrid tilapia is the turbo-charged version. Hybrid varieties created by crossing different tilapia strains are selectively bred for faster growth, greater disease resistance, and better feed conversion. Indonesia’s MMAF has released over 12 tilapia strains since 2004, with continuous improvement programs underway.

For farmers already comfortable with tilapia production, upgrading to a proven hybrid strain is one of the most straightforward ways to increase yield without dramatically changing your operation. The faster turnover and improved survival rates directly translate to better margins per production cycle. Just make sure you are sourcing fingerlings from a reputable hatchery with documented performance data.

13. Sturgeon — The Caviar Opportunity

Sturgeon farming is for the patient, well-capitalized entrepreneur with an eye for ultra-premium markets. Sturgeons produce caviar, one of the most expensive food products in the world, but the fish take 7–10 years to mature to the point of egg production. That is a long time to wait, but the payoff can be extraordinary.

Some operations mitigate the long wait by selling sturgeon meat in the earlier years while growing fish toward caviar maturity. Sturgeon meat itself commands a premium and has growing demand in high-end Asian restaurants. Cold, clean water is essential, and so is specialized knowledge in sturgeon biology and breeding. This is not a beginner’s species, but for investors with a long horizon, it is a compelling opportunity.

14. Eels — High-Value Asian Export

Farmed eel is a significant delicacy across Japan, China, South Korea, and Taiwan markets that have historically paid very high prices for quality product. Japanese unagi (freshwater eel) in particular commands premium prices, and farmed supply from Southeast Asia has been filling a gap left by declining wild catches.

Indonesia has genuine potential in the eel farming space, but it is a challenging species to work with. Eels have complex life cycles, require specialized feed (often live feed in early stages), and are sensitive to water quality fluctuations. That said, producers who have mastered the technical side have found it to be extremely lucrative, particularly for export to Japan and Hong Kong.

15. Red Tilapia — Fast-Growing & Eye-Catching

Red tilapia is essentially tilapia’s more photogenic cousin. Its vibrant reddish-orange color makes it stand out in wet markets and supermarket displays, often commanding a slightly higher price than standard Nile tilapia purely on the basis of visual appeal. Consumers tend to associate the color with freshness and quality, which is a real competitive advantage at point of sale.

Beyond aesthetics, red tilapia performs well in both freshwater and brackish environments, adapts quickly to intensive farming conditions, and grows at a rate comparable to Nile tilapia. For farmers looking to differentiate in a competitive market, red tilapia is a smart play.

Key Considerations for Profitable Fish Farming

Choosing the right species is only the beginning. Here are the factors that will ultimately determine whether your fish farm is profitable, and sustainable over the long term.

Frequently Asked Questions

Q: Which fish is best for first-time farmers?

Tilapia is almost universally recommended for beginners. It is forgiving with water quality fluctuations, grows fast, has low feed costs, and has strong local market demand across Indonesia. Catfish (lele) is the other strong option, particularly if you are working with smaller tanks or limited pond space.

Q: What is the most profitable fish to farm in 2026?

Profitability depends heavily on location, access to buyers, and capital. For high volume with reliable margins, shrimp and tilapia lead the way in Indonesia. For premium per-kilogram returns, sturgeon (caviar), eel, and salmon are at the top, but they require more expertise and investment. Rainbow trout and barramundi offer a good middle ground: premium positioning without the extreme complexity of salmon or sturgeon.

Q: How big is the global aquaculture market in 2026?

The global aquaculture market was valued at approximately USD 326 billion in 2025, and is expected to grow to around USD 418 billion by 2030. A CAGR of roughly 5.1%. The Asia-Pacific region accounts for the largest share of production, with the regional market alone estimated at USD 148.5 billion in 2025.

Q: Which fish are typically farmed in Indonesia?

The eight species that account for around 90% of Indonesia’s aquaculture output include Nile tilapia, clarias catfish, milkfish (bandeng), white-leg shrimp (vannamei), common carp, pangasius catfish, Asian tiger shrimp, and barramundi/sea bass. The Indonesian government’s five priority export commodities are shrimp, tilapia, seaweed, lobster, and crab.

Q: What is RAS and should I invest in it?

Recirculating Aquaculture Systems (RAS) are enclosed, land-based farming systems that recycle and filter water, typically reusing up to 95% of water per cycle. They allow precise control of all environmental parameters and enable year-round production of species that would otherwise require specific climate conditions. RAS is best suited for high-value species (salmon, trout, eel, sturgeon) where the premium margin justifies the investment.

Q: Where can I get support to start a fish farm in Indonesia?

FnB Tech’s Fishery division supports local fish farmers in Indonesia with pond access, technology tools, connections to investors, and expert consultancy. The Indonesian Ministry of Marine Affairs and Fisheries (KKP) also offers support programs. Reaching out to local fishery cooperatives (koperasi nelayan) is a practical first step for community-based support.

Final Thoughts: Choose the Species, Then Build the System

The 15 species in this guide are not a ranking, they are a menu. The “best” fish to farm in 2026 is the one that fits your water, your capital, your buyer, and your stomach for risk. A first-time farmer in West Java with a hectare of freshwater pond should not be chasing salmon. A coastal investor with cold-chain access and export contacts probably should not waste time on backyard ornamentals.

What separates farms that survive from farms that scale is rarely the species choice itself. It is the operational discipline behind it: clean water, clean data, the right feed, and access to buyers who will pay for quality. Ready to scale your farm, not just sustain it? Partner with FNB Tech to build a smarter, more profitable aquaculture operation!

Tania Putri

I’m Tania Putri, a passionate content writer who truly loves coffee and the stories behind every cup. For me, writing isn’t just about words it’s about creating connection. I specialize in SEO-friendly content that feels natural, human, and engaging, especially in the world of specialty coffee.

I enjoy exploring everything from origin stories and flavor notes to pricing insights and global coffee trends. Whether I’m writing about rare kopi luwak or Ethiopian heirloom beans, I always aim to blend strategy with warmth. Coffee inspires me, and through my writing, I love sharing that passion with others.

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