Alarivean Inc. is an aquatic prosperity company providing water-treatment and aquatic ecosystem remediation services. It develops technologies intended to address environmental stresses affecting marine and freshwater systems, including hypoxia and dead zones, harmful algal blooms, nutrient loading, contamination and thermal stress. It uses mobile treatment systems designed to operate directly within affected water bodies.

Central to its approach are its SeaBreather and ReefHealer vessel-based systems. These draw water through an onboard treatment process and return it to the surrounding environment. The technology incorporates oxygenation, real-time water-quality monitoring and operational controls. Controlled oxidation processes are used only in a separate harmful-algal-bloom and water-treatment mode, run clear of live coral.

Alarivean is developing this approach for applications ranging from coastal ecosystem remediation and harmful algal bloom mitigation to improving water quality around vulnerable marine habitats. The company also emphasises independent monitoring and regulatory oversight as part of its proposed treatment programmes.

Alarivean, an aquatic prosperity company, has invited reef experts to evaluate its ReefHealer system independently and critically. The company says ReefHealer runs from quiet, shallow-draft electric vessels that draw water through an onboard loop and return it to the water column. During heat-stress events, Alarivean proposes:

• Surface air nanobubbles in the upper water column during peak daylight. Alarivean says these shade the water, and it is compiling measurements of how much shade they give, and where;
• Pure-oxygen nanobubbles lower in the water column, intended to counter low oxygen. They would be dosed at night as well as by day, when reef hypoxia is usually worst;
• An optional sodium carbonate (soda ash) arm, trialled separately, for carbonate chemistry. It would be added as a solution, with limits on pH and on precipitation.

In coral mode, Alarivean states that no peroxide or other oxidant is dosed. Its onboard oxidation modules, used against harmful algal blooms and nutrient loads, run only in a separate water-treatment mode clear of live coral. That mode has stated stand-off distances, residual-oxidant limits and independent testing.

The vessels work only where the water is at least 2–3 m deep, so the hull never comes close to live coral. The discharge depth is set for each site, from just below the surface downward. Shallower areas, such as reef flats and nursery margins, are reached by the treated water rather than treated from above, and a tracer measures the dose that arrives.

Alarivean states that its core systems are at Technology Readiness Level 8 (TRL 8): the proven vessel delivery capability, and the mechanisms with a solid scientific basis. Research-stage items, such as antioxidant support, sit within its service model. That model is contracted to outcomes rather than to equipment or outputs, and Alarivean commits to independent scientific leadership and accountability.

Trials would begin with a measurement-only baseline on treated and control plots, before any dosing. They would then calibrate the oxygen and carbonate arms and compare shading with shade cloth in nurseries. They would be co-designed with independent scientists, to test whether the mechanisms work and where they could cause harm. No trial site has been named yet. Alarivean commits to naming the permits for each site.

Alarivean states that the trials would stream live raw data to independent academic institutions. It also states that collaborating principal scientists would hold unilateral authority to pause or stop operations. The evaluation would test whether these commitments hold in practice.

CoRR Hub has not evaluated the system and does not endorse it. CoRR Hub has no financial or commercial relationship with Alarivean. We are passing on the invitation, and we will introduce anyone who wants to take a critical look.

The three offers:

1. Verify the science. Examine Alarivean’s claims and the evidence it cites.
2. Co-design trial protocols. Help shape the hypotheses, controls, monitoring and stop criteria.
3. Propose or collaborate on pilots and programmes. Put forward a pilot or programme proposal, or ask to collaborate on another existing or proposed pilot or programme. You can take part as an individual, an organisation or a group.

Sceptics and critical reviewers are especially welcome. A well-designed trial that shows something does not work is a valuable result.

Note: No payment, funding or authorship is offered through this invitation.