We’re excited to announce that we’ll be showcasing the Marlin+, OxyGuard International’s latest innovation in aquaculture monitoring and control, at the upcoming Australian Prawn Farmers Symposium, taking place from 6th – 8th August at the Amora Hotel, Brisbane.

What began as early conversations with farmers about the future of water quality monitoring has now become a reality. The Marlin+ represents a significant step forward in smart oxygen control, designed to deliver greater insight, more adaptive management, and enhanced precision for farm operations.

Developed by the expert team at OxyGuard International, this next-generation technology offers aquaculture professionals a new level of control and data visibility to support more efficient, responsive, and sustainable farming practices.

📍 Visit our stand at the Symposium for an exclusive first look at the Marlin+ in action.

We look forward to connecting with producers, researchers, and industry leaders to discuss the latest in aquaculture technology and innovation.

See you in Brisbane.

The grow-out farm consists of 24 flow through raceways.  The saltwater is sourced from the ocean to the farm 2km inland to minimise the farms footprint on the coastal ecosystem. Each raceway uses pure oxygen, injected into the water to maintain enough oxygen for the Barramundi to survive in the warm salt water and to be able to continue to be intensively farmed.

Technolab designed and installed the OxyGuard Pacific monitoring and control system to measure dissolved oxygen and turn on and off the oxygen injection to maintain the measurement set point in each raceway. This provided a very stable and optimal oxygen environment so the Barramundi could be grown more efficiently.  Alarm notification was an essential element to be included, not only for the protection of the fish stock but this also allowed better control of staffing over the night period.

In addition, the OxyGuard system automatically controls the timers for the paddle wheel installed in each raceway thus reducing the power requirement by having them turned off when they are not required.

Technolab also provided the Oxygen distribution panels for the delivery of the controlled oxygen, which allowed for a seamless installation with the control system at each pond.

One of the key elements which made this a successful installation is the Coral Coast Barramundi management and staff took the time and effort to install all the cable underground and installed quality enclosures to ensure the system operates to its maximum capabilities in this very harsh, hot and saltwater environment.

Technolab installed three OxyGuard Pacific Systems on each of their farms to measure dissolved oxygen and to control the paddle wheels on each pond based on time of day and/or oxygen measurement.  This has given the technical staff access to real time and logged data so the ponds can be more closely managed.  There also has been significate power savings in having the paddle wheels controlled automatically.

In 2020 Mainstream commissioned a new hatchery on site consisting of two RAS with 16 tanks.  The OxyGuard Pacific system monitors and controls the dissolved oxygen in each tank and monitors controls pH, redox and Salinity in the two sump systems.

Late this year (2020) an additional grow-out tank facility will be completed.  The OxyGuard system will be replicated the same as the other hatchery.  These grow out tanks with grow the barramundi to about 200g before heading out into the ponds.  The main reasons for this expansion is to control the loss of stock to predatory birds as larger fish are easier to protect compared to smaller fish and the management of water quality and feed control is optimal in RAS.

To do the 12-hour transfer of these sea creatures meant that they required a custom-built truck to be specifically designed for this task.

Moving the sharks was going to be a complex and huge operation as only one shark could be moved at a time on the road. 

Working with Advanced Aquarium Technologies in Queensland, Technolab supplied and installed the OxyGuard Pacific system, which was the perfect product to be fitted to the tank on the transport truck.

The OxyGuard Pacific looks after the water quality parameters on the truck, measuring the dissolved oxygen, temperature, and pH.

After successfully moving all of the 2000+ shark and sea animals to their new enclosures on the Sunshine Coast it is great to hear that all of the animals are thriving in their new home. The Sea Life Sunshine Coast facility is one of the few aquariums in the world to successfully breed Grey Nurse sharks, so we are thrilled to have been part of this project.

Our thanks to Advanced Aquarium Technologies who designed and manufactured the mobile aquarium which our equipment was housed in.