About us

Built for reefers, by reefers.

Nereus designs smart reef aquarium controllers, dosers, ATO systems and monitoring tools — all speaking the same language through one live dashboard.

We care about precise control, clear trends, and notifications the moment something drifts off-spec. From hardware to media, chemistry and dosing supplies, our catalog is meant to support a stable, healthy reef system end to end.

What we stand for

• Clarity — parameters and device status you can actually read
• Reliability — gear and consumables you trust on a living system
• Integration — devices that work together instead of in isolation

Questions about a product or your setup? Contact us — we’re happy to help.