Reef Buddy and reports
Cora Max shows the same intelligence as the phone, on a screen large enough to read from a distance. Reach these from the tank menu: tap the tank name in the top bar.
Reef Buddy
The daily briefing appears on the dashboard and has its own full screen: the Stability and Data scores, the summary, and the insights behind them.
See Reef Buddy for what the scores mean.
ICP results
Your uploaded results, with the score and summary for each, and trends across every report.
The score out of 100 is calculated from your results against their ranges. Any parameter out of range holds it at 70 or below, and one far out of range holds it at 40 or below. Its colour gives the band: green (healthy) above 70, amber (needs attention) from 40 to 70, and red (critical) below 40.
Uploading a result is done from the phone; see ICP and health reports.
Health reports
Run and read a health report at the wall. It is the same assessment the phone produces, and its score is calculated the same way as an ICP score.
History charts
Any parameter can be opened as a full-screen chart, over the same ranges as the phone. On a wall display this is the most useful way to look at a slow drift; a month of alkalinity at full screen shows a trend that a small tile cannot.
Chips choose which readings to show: All, Apex, Manual, ICP, Cora, ReefBeat or AquaWiz™. Each source has its own colour, and the chips double as the key. ReefBeat and AquaWiz points are drawn as squares, and readings someone took (Manual and ICP) as larger dots. All shows every source side by side and never averages one source's readings with another's.
Guided journeys
You can follow a journey on Cora Max and see where it has got to.
A cycling journey also takes readings here; Log a test on the cycling screen records ammonia, nitrite and nitrate without going to your phone, which is the point when you are standing at the tank with a test kit.
An issue journey is read-only at the wall: starting one, completing a step, recording an outcome, and resolving or dismissing it are done on the phone. See Guided journeys.
Written for Cora Max 0.28.60 and Cora Mobile 0.5.70. Last checked 2026-09-17.
Still stuck? Email cora@coraiq.tech and we'll help.