AquaSense / For aquarium keepers

Aquarium care,
better connected.

Software and hardware built by an aquarist. Our free app helps you care for your tank today. Smart ATO, our automatic top-off, is in development.

Front-view design render of the navy AquaSense Smart ATO.
Smart ATODesign render · In development

The app

Live today

Available today, no hardware needed.

Free on iOS and Android, for reef, planted and freshwater tanks.

  • AquaSense tank dashboard showing tank health, water parameters and recent activity.

    Log and chart parameters

    Test results in one place, charted over time, for every tank you run.

  • Track livestock and maintenance

    Know who lives in each tank, check compatibility, and get nudged when a task is due.

  • Ask Finn, optional AI

    Finn answers using what you have logged. It advises; it does not control equipment.

Smart ATO

In development

Our first hardware, in development.

An automatic top-off that senses water level from outside the tank, with safety limits designed to run locally and fill history planned in the app.

  • External, non-contact level sensing
  • Fill limits and sensor checks designed to run without Wi-Fi
  • Siphon prevention in the water path
Read the full ATO overview
Product render of the AquaSense Smart ATO, front view.
Design render. Not a photo of a finished unit; details may change.
Close-up of zoanthid and hammer coral polyps in a reef tank.

Who builds it

“I flooded my house more times than I'd like to admit. Eventually it hit me: there had to be a better solution.”

AquaSense is one hands-on aquarist who works behind the counter of a fish store and builds the app at night. AquaSense LLC is registered in Louisiana; everything is designed in Alabama.

Read the founder's story

Founder reservation

Follow the ATO from the start.

A $5 refundable reservation gives you access to exclusive early Kickstarter pricing. It is not a device purchase or a pledge.

Reserve for $5

Prefer to just get updates? Join the free hardware waitlist.