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Stocking planner

Aquarium Tank Builder

Build a multi-species stocking list and get an instant compatibility and capacity check — the same conservative engine that powers every pair check, applied to your whole tank.

How it works

  1. Set your tank volume in litres.
  2. Search for each species and add it with the number you plan to keep. Group-minimum is pre-filled for schooling fish.
  3. Get an instant verdict: compatibility conflicts, stocking pressure, water-parameter overlap, zone distribution, and fix suggestions.
Browse all 136 species →Beginner fish guide →Tank size hubs →

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Add three or more species with counts to get the richest compatibility picture.