“Every drop of water has something to say.”

A wise companion for the small worlds you keep

BioSensei Biotop watches over home aquariums, terrariums, paludariums and ponds. Log your measurements by hand, or let live probes feed it every ten minutes — then ask Dr BioSensei what the evidence really means, before you reach for the chemistry kit.

Open the app — free beta Learn it in five minutes

No install, no card. BioSensei runs in your phone's browser at biosensei.app — try it instantly in demo mode, or create an account to keep your ecosystems in the cloud. English, français, 中文.

Dr BioSensei — a kindly white-haired sensei in a lab coat

One app, every kind of biotope

Fifteen habitat types, each with its own sensible metrics. A bearded dragon's terrarium is not an aquarium — so BioSensei never asks a lizard for its pH, and never asks a goldfish how its basking spot feels.

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Aquariums

Freshwater, marine and smart tanks, nano bowls, aquaponics and greenhouse systems.

pHECTDSnitratetemperature
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Terrariums

Arid, tropical and temperate setups for lizards, snakes and inverts — zones included.

basking tempcool zonehumidityUV indexweight
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Paludariums

Half water, half land — amphibians and mixed worlds tracked across both sides at once.

water tempair tempsoil moisturehide humidity
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Ponds & plants

Garden, wildlife and greenhouse ponds, plus soil beds read by 7-in-1 probes.

dissolved O₂turbiditysoil pHfertility

Log it your way — by hand, by sensor, or both at once

Hybrid means simultaneous. Your probes report on their own rhythm while you keep adding feedings, shed notes and test-kit readings. Everything lands in one chronological history, with its origin clearly marked.

Manual

Your eyes, your test kit

  • Pick a zone, type the values, add a note — thirty seconds on your phone.
  • Feedings, sheds, behaviour and interventions belong in the story too.
  • Zero is a real measurement: 0 ppm nitrite is good news, not missing data.
Live sensors

Probes that never forget

  • Zigbee water and soil probes feed the app a canonical sample every ten minutes.
  • A “Current sensor state” card shows the latest value, the 6-hour average and the range for every metric.
  • Honest freshness: a silent probe is marked stale or offline — a last-known value never poses as the present.
“A pH probe shouting 9.8 while every fish feeds happily? I do not declare catastrophe — I suspect the probe, and I ask you to verify before you dose anything. Thriving animals are evidence too.” Dr BioSensei weighs every reading against calibration, repetition and what your animals are actually doing — then tells you what is confirmed, what is probable, and what is likely a measurement error. It can also check a sick inhabitant, photo included.
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Bundled with the Home Biotope Solar Kits

BioSensei is the software half of the Ajinomatrix BioSphere Home Design Studio kits — solar-powered fountains, ponds and biotope hardware that arrive with their digital companion already matched. Pick a kit during setup and your ecosystem is pre-configured for it.

Explore the solar kits
  • Home Biotope Plus Solar Kit — solar aquarium life, pump and panel included
  • Garden Pond Companion Kit — seasonal-aware pond care
  • AquaPoNano Starter Kit — fish and greens in one small loop
  • CSSGH Companion Kit — the smart solar greenhouse, monitored

Aquarium makers and installers: let's talk

The next chapter is BioSensei SysOps — the professional operations layer born on our own solar-fountain testbed: incident registers, configuration lineage, knowledge base, fleet telemetry. We are looking for aquarium manufacturers, kit makers and professional installers who want BioSensei integrated with their hardware or service offer.

Start a conversation

A note for partners

BioSensei is today a mobile-first web app — designed for the phone in your wet hands, running in any browser with nothing to install. We are actively looking for support and partners to port it to full-feature native Android and iOS apps, plus desktop. If that's a project you could power, we'd like to hear from you.

BioSensei SysOps project poster — from home, to space, for Earth

Become an early keeper

BioSensei Biotop is in open beta and free while we grow it with real tanks, real terrariums and real ponds — including the five live ecosystems at our own BioSphere laboratory in Belgium. Your feedback shapes what Dr BioSensei learns next.

Open biosensei.app Read the getting-started guide