Aquarium tool
Fish finder
Find the species that suit your tank size and water.
How it works
The finder compares your tank with the figures in each profile: the smallest tank it needs, and its range for temperature, pH and hardness. A species is listed only if your tank meets every figure you fill in. A profile with no figure for something you entered is left out, because it cannot be shown to suit.
What it does not check
It does not check how species get along. Pick a few and use the compatibility checker next. Brackish species are listed only when you ask for them.
More tools
Tank compatibility checker
Plan your stock before adding it to your aquarium.
Aquarium volume calculator
Work out how much water your tank really holds, and what it will weigh when full.
Water change and dosing calculator
Plan a water change and scale a treatment dose to your tank.
Heater and filter calculator
Size a heater and a filter for your tank.
Cycling helper
Find out where your tank is in the nitrogen cycle.