EcoSym

What fits my tank?

The data behind this page

The Fishkeeping Network

Stocking guidelines: which species fit a tank, the group sizes they need, and the warnings that come with them.

The Aquarium Wiki

Water chemistry requirements: the pH, hardness and temperature each species is kept in, along with toxicity tolerance.

Used under CC BY-SA 3.0.

Tank size

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Your water (optional)

°C
dGH

Specify however much you want about your intended water chemistry, and the planner will show you which species can thrive, tolerate, or are unsuitable for it.

Your plan

Nothing in it yet. Add fish with the “+ Add” on any row and we'll show the water that suits all of them and flag anything that would not get along.