Editing the Cora Max dashboard
The Cora Max dashboard uses a fixed grid. Every tile must fit on one screen; the display does not scroll. That is the main difference from the phone dashboard.
Open the editor from the tank menu: tap the tank name in the top bar, then Dashboard layout. It is also under Settings → Tank settings → [your tank] → Dashboard layout.
Choosing a grid
Pick the density first, because changing it re-flows everything.
| Grid | Tiles | Feels like |
|---|---|---|
| 2×2, 3×2, 3×3 | 4–9 | Large. Readable from right across the room. |
| 4×4, 5×3, 6×4 | 16–24 | The usual choice for a full system. |
| 6×5, 8×4, 8×5 | 30–40 | Dense. A whole reef room at once. |
| 9×5, 10×5 | 45–50 | Very dense. Best on the largest screens. |
| Auto | up to 32 | Cora picks a shape to fit however many tiles you added. |
A fixed grid holds as many tiles as it has cells, up to 50 on 10×5. Auto is the one option with its own ceiling: it stops at 32 tiles, because beyond that the text becomes too small to read at a distance.
Adding and arranging
The editor tells you the three gestures along the top: tap a tile to edit, long-press to move it, and ✕ to remove it. Tiles can be one or two cells wide and one or two cells tall.
Outlets & Feed adds your controllable outlets and feed cycles in one step, rather than one tile at a time. Clear all empties the grid so you can start again.
The nine tile types (Value, Gauge, Graph, Status, Outlet, ReefBeat, Apex module, Jecod™ and Maxspect™ (beta)) are described in the Widget reference.
Designing for distance
A wall display is read from further away than a phone, and usually at a glance rather than with attention.
- Give your headline parameters two-by-two. Alkalinity, temperature, pH: the things you want to read without walking over.
- Put controls at the edges. Outlet tiles are the ones you reach for; they are easier to hit at the sides.
- Group by subject, not by type. Everything about dosing together, everything about flow together. You scan a wall by area.
- Leave the traces small. Trace elements and other slow numbers are reference, not monitoring; a one-by-one value tile is plenty.
Saving layouts
Nothing you do in the editor takes effect until you press Save. Leaving without saving discards the changes.
My dashboards keeps layouts you want to come back to, so you can switch between them instead of rebuilding. A dense everyday layout and a big-tile layout for when you are working in the tank suit different moments, and switching between them takes one tap.
Multiple tanks
Each tank has its own layout. Edit them separately, one tank at a time, from that tank's own settings.
Written for Cora Max 0.28.60 and Cora Mobile 0.5.70. Last checked 2026-09-09.
Still stuck? Email cora@coraiq.tech and we'll help.