Rainbow Trout Farm Trial Operation: Singapore Land-based RAS Capacity Planning

Singapore's first rainbow trout farm starts trial operation, with locally farmed rainbow trout expected to hit tables by the end of this year.

Local aquaculture operator Blue Aqua held a launch ceremony at the rainbow trout farm in Lim Chu Kang Liangzhu Harvest Lane on Thursday (June 4) and announced a phased expansion of capacity. Initial annual output is expected to reach 1,200 metric tons, with potential to increase to 3,000 metric tons in the future.

This 1.6-hectare land-based farm cost approximately S$45 million. Since rainbow trout are cold-water fish with strict requirements for water temperature, quality, and growing environment, the operator uses an advanced Recirculating Aquaculture System (RAS) with fully enclosed environment control technology to precisely regulate temperature, water quality, and biosecurity conditions in Singapore's tropical climate.

According to reporters on site, the farm's infrastructure is largely complete, but the rearing tanks have not yet been filled with water. Blue Aqua founder Fashade revealed that the company has prepared fish eggs, which are expected to take about 8 to 10 months to grow into mature fish weighing around 500 grams.

He said the company hopes to start producing rainbow trout by the end of this year to test market response, with the first batch expected to weigh between 350 grams and 400 grams.

As for the initial yield, Fashade admitted it is still difficult to predict accurately. "We need a lot of debugging and optimization. Results could far exceed expectations or fall short— it's essentially a process of constant calibration and refinement."

Founded in 2009, Blue Aqua also operates a shrimp farm in the same area, with an annual output of about 120 metric tons. Fashade noted that rainbow trout and shrimp are different species, each with its own farming challenges and advantages. Although the initial capital investment for rainbow trout farming is higher, the system is highly automated and integrated with AI management technology, making overall operations easier to manage precisely.

Regarding the gradual increase in annual output at the rainbow trout farm, Fashade emphasized that this is not a typical automated farm but a fully controlled farming system. "Our data is very accurate because all planning is calculated and designed based on actual capacity."

According to data released by the Singapore Food Agency in May this year, local farms produced a total of 3,800 metric tons of seafood last year, up 8.6% from 3,500 metric tons the previous year, but still accounting for only about 2.7% of national seafood supply. Meanwhile, seafood imports increased from 124,600 metric tons to 138,000 metric tons, highlighting the country's high dependence on imported food.

Cold-water Fish Rainbow Trout: Key to Fully Enclosed RAS Control

Rainbow trout have strict requirements for water temperature, quality, and growing environment. The farm uses an advanced Recirculating Aquaculture System (RAS) combined with fully enclosed environment control technology to regulate temperature, water quality, and biosecurity conditions in Singapore's tropical climate.

Trial Operation Timeline: Fish Egg Cultivation Takes 8-10 Months

Farm infrastructure is largely complete, but the rearing tanks have not yet been filled with water. The operator said it has prepared fish eggs, which are expected to take 8 to 10 months to grow into mature fish weighing about 500 grams, and aims to start producing the first batch of domestic rainbow trout by the end of this year.

Capacity and Market Testing: From 1,200 to 3,000 Metric Tons

Initial annual output is expected to reach 1,200 metric tons, with potential to increase to 3,000 metric tons. Fashade believes the first batch's yield still requires extensive debugging and optimization, and results could be higher or lower than expected—this is a process of constant calibration and refinement.

In addition, the local fishery business environment is under pressure. Official data shows the number of offshore fish farms has shrunk continuously since 2022, from 109 to 67 last year; land-based farms have remained relatively stable, with 34 as of 2024. Fashade said the company has calculated cost-effectiveness in detail and hopes to price local rainbow trout lower than imported ones to enhance market competitiveness.