Smart Tank Club

Know your tank is fine at a glance

Log a water test in seconds. Each number says in a word whether it's fine, your phone hears when one drifts, and the journal keeps what you did and what's next.

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Free for one tank · English and Spanish

A planted tank with driftwood, ferns and a school of neon tetras, on a light oak cabinet in a bright living room
Everything looks goodNext: water change on Saturday

Log a water test

Type in your test results. Each number says, in a word, whether it's fine.

Temperature27 °CGoodtoday
pH7Goodtoday
Ammonia0 ppmGoodtoday
Nitrate10 ppmGoodtoday

What a healthy tank looks like

Clear water, bright fish and plants that grow, whatever the size of the tank.

  • A corner reef tank with colourful corals, clownfish and a royal gramma under blue light, on a dark curved cabinet
    Corner reefClownfish, a royal gramma and soft corals
  • A large round reef tank with a coral tower and yellow and blue tangs, built into a stone column in a hotel lobby
    Hotel lobby reefA round reef built into a stone column
  • A long planted tank with driftwood, two angelfish and a school of rummy-nose tetras, on a walnut cabinet in a warm living room
    Angelfish communityAngelfish, rummy-nose tetras and corydoras
  • A curved corner tank with driftwood, ferns, neon tetras and two gouramis, on a dark cabinet in a living-room corner
    Planted corner tankNeon tetras, gouramis and corydoras
  • A tall cylinder reef tank with a coral tower and clownfish, standing in a marble hotel lobby
    Reef columnA tall cylinder that fits a lobby
  • A tall square column tank with a driftwood tree, ferns and small orange tetras, on a walnut cabinet beside a sofa
    Planted columnA tall tank for a living-room corner

These are example photos, not members' tanks.

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Free for one tank · English and Spanish