About Fishies

Fishies is a knowledge base for aquarium fish, plants, and other aquatic organisms

Detailed, structured information about aquarium inhabitants and tools that help readers choose compatible species and provide suitable care conditions.

We are building Fishies to bring reliable information about aquarium fish, plants, invertebrates, and other aquatic organisms into one place — from water and tank requirements to behaviour and compatibility.

Our goal is to make aquarium keeping easier to understand and species choices more deliberate, helping beginners avoid common mistakes and experienced aquarists find structured information faster.

A structured database

Essential information in one place

Fishies is more than a species list. Its cards bring together water parameters, temperature, suitable tank size, adult size, feeding, behaviour, difficulty, reproduction, compatibility, and other important care requirements.

Planning before purchasing

Choose inhabitants for a particular aquarium

Match aquarium conditions

A reader can enter known conditions such as volume, height, temperature, pH, GH, KH, heating, CO₂, and lighting. Fishies can then compare those conditions with species requirements.

Check species compatibility

As organisms are added to a planned aquarium, the system can account for species already selected and exclude incompatible options or those that do not fit the available conditions.

Project mission

Why we are building Fishies

Fishies helps readers understand which organisms can live in a particular aquarium, what conditions they need, and whether the selected species can live together.

Better planning reduces common care mistakes and helps create more stable, suitable conditions for animals and plants — especially before an avoidable purchase is made.

Methodology

How information is prepared

Fishies uses modern tools, including artificial intelligence, to collect and structure large amounts of information. AI is not treated as a source and does not decide what is published.

Information is compared with sources and checked before it appears in the catalog. The published version remains current until new evidence is reviewed and accepted.

How a species card is prepared

  1. Sources are selected.
  2. Information is collected and structured.
  3. Values and evidence are checked.
  4. The card is published.
  5. Community feedback can trigger another review.

Community corrections

Help improve the database

If you notice an error, an unclear value, or have more recent information, you can report it to the project. A link to the card, a description of the disputed value, and supporting sources will help us review it.