Free tool · local only
Tank planner
A place to plan the tank before you open the game: who lives there, what they look like, how they behave and who likes whom. It does not enforce population limits or invent care stats — none are published.
Saved in this browser only. Export a JSON file if you want to keep it or move it to another device.
Add a fish
Tank notes
Fish in this plan
0 fish
No fish yet
Add one from the form, or load an example plan to see how it works.
Setup checklist
0 / 8
A planning checklist, not in-game objectives.
Your plan is saved locally.
Why plan on paper?
A plan keeps the tank coherent
Drawquarium’s editor is fast enough to improvise, but a tank with a theme and a short fish list usually looks better than one built from whatever you drew last. This planner is deliberately simple: names, colours, behaviour, one relationship note.
Use colour names or hex codes
The planner extracts hex codes and shows swatches. You can also write “lime, coral, cream”.
Relationships are notes, not mechanics
Write “follows Moss” as a creative intention. The game decides the actual relationship system.
No population cap
No official limit has been published, so the planner does not enforce one. Add a note if you want to self-limit.
Export before clearing data
Local storage is tied to this browser. Export JSON if the plan matters.