Graphs

If the home screen answers "is everything fine right now?", the graphs screen answers "what has been happening?". It is the equipment's most powerful tool for anyone who wants to understand their own aquarium.

21.1 Period and parameters

At the top, choose the period — 24 h, 7 days or 30 days, always within the selected month — and tap the parameters you want to see. You can select one or several:

Parameter	What it records	Axis scale
KH	The measured alkalinity	Fixed, from 5 to 12 dKH — in your unit, about 89 to 214 ppm CaCO3 or 1.8 to 4.3 mEq/L
pH	The aquarium pH (requires the probe to be calibrated)	Fixed, from 7.5 to 9
CO2 Air	Ambient CO2	Automatic: adjusts to the values in the period
CO2 Water	CO2 dissolved in the water	Automatic
CO2 Port	The port's drive percentage, hour by hour	Fixed, from 0 to 100%
Buffer (mL)	Volume delivered by the Alkalinity Doser	Starts at zero; the top adjusts
Buffer KH	How much alkalinity that dose represented	Starts at zero; the top adjusts

A fixed scale means the axis does not change from one day to the next: KH always appears in the same band, and you can compare different days by eye. An automatic scale stretches to the values in the period, so that small variations become visible.

Each parameter is drawn as a continuous line, with no markers on the points. To see the values for a given hour, slide your finger over the graph — or the mouse, on a computer: a box shows the time and the value of each selected parameter at that hour.

21.2 Which axis each one gets: the order you select them in

The graph has two axes with real values — one on the left and one on the right. What decides which parameter goes on each axis is the order in which you select them:

The axis rule: the 1st parameter selected takes the left axis, the 2nd the right axis, and from the 3rd onwards the lines are dashed, showing only the trend.

Order	Where it appears	How to read it
1st selected	The left axis	Solid line, with real values on the parameter's scale
2nd selected	The right axis	Solid line, with real values on the parameter's scale
3rd onwards	No axis of its own	Dashed line, showing only the trend — rising, falling, following the others. The real values are in the cards above the graph

If you deselect a parameter, the ones after it move up one place: the 2nd moves to the left axis, the 3rd gets the right axis, and so on.

The screen opens with KH already selected, and at least one parameter always stays selected: the last one cannot be deselected.

21.3 The cards

Above the graph, each selected parameter gets a card in the same colour as its line:

Type of parameter	The large number	The smaller numbers
Readings — KH, pH, CO2 Air, CO2 Water, CO2 Port	The current value	Average, minimum and maximum for the period
Dosing — Buffer (mL), Buffer KH	The total dosed in the period	Average, minimum and maximum per dose

21.4 Automatic comparisons

With a single parameter selected, three comparisons appear just below, answering the most common questions without you having to interpret the graph. The badge turns green when the change is within what is normal for that parameter — for example, up to 0.15 dKH for KH:

Comparison	What it is for
vs. same time yesterday	Isolates the daily variation. If 3 pm today differs from 3 pm yesterday, something genuinely changed
vs. previous hour	Shows the recent movement — how fast KH is rising or falling
vs. day average	Places the current reading within its own day, separating the normal from the exceptional

Dosing does not get these badges: comparing one hour's dose with another's tells you nothing — what matters is the total and the pattern of doses, which are on the card.

21.5 Chart, Table, Compare and Map

The mode selector changes how you look at the same data. Chart and Table are always available. Compare and Map appear when you select a single parameter and choose 7 or 30 days — they need several days to compare.

Mode	Available	Answers the question
Chart	Always	How did the parameters move over the period?
Table	Always	What was the exact value at each hour?
Compare	One parameter, 7 or 30 days	Does this time of day repeat the same every day, or swing? Is today out of the pattern?
Map	One parameter, 7 or 30 days	Is some time of day slipping, day after day?

Table: the exact value at each hour

Each row is an hour with a measurement, the most recent at the top. The first column holds the time; the next ones hold one selected parameter each, in its colour and with its unit. It works with as many parameters as you like — on a phone, the table scrolls sideways.

Example of Table mode with KH, CO2 Port and pH selected.

Detail	What it means
Cloud beside the time	Green: that measurement has already been sent to the Aquarino cloud. Grey: still pending, and it uploads by itself when the connection allows
CO2 Port with minutes	Beside the percentage are the equivalent minutes in the hour: 45% is 27 minutes with the port on
Dash (—)	That parameter has no reading at that hour

Compare: one day over another

Each day in the period becomes a curve, all overlaid on the same axis from 00h to 24h. That way the same time on different days lines up one above the other.

Example of Compare mode with KH over 7 days: the curves tighten in the morning and at night, and today breaks from the pattern in the afternoon.

Element	How to read it
Today's curve	Highlighted, thicker line
Previous days	In the parameter's colour, fainter the older they are
Min–max range	The shaded band: the minimum and maximum at each time of day over the period
Median	The dashed line: the median at each time of day, your aquarium's "typical day"

Map: the whole period at once

Each row is a day — Today at the top, then -1d, -2d and so on — and each column is an hour, from 00 to 23. The colour of each square shows the value for that hour.

Example of Map mode with KH over 14 days. The highlighted column, in the late afternoon, gets darker every day: KH at that time is falling, even if the day as a whole looks normal.

How to read it	What it reveals
Across	A whole day, hour by hour
Down	The same time of day over the days. A column that changes colour from top to bottom reveals drift: the parameter slipping day after day at that time — something a single day's curve does not show
Blocks of even colour	Stability
Faded squares	Hours without a measurement

21.6 Exporting

The Excel and Image buttons export the history as a spreadsheet or as a picture, and the Fullscreen button enlarges the graph in any mode. The spreadsheet opens in Excel or Google Sheets and lets you build your own analyses, compare months and follow the system's long-term evolution.