sidometer · online feed quality

Every pellet tells a story.
The sidometer helps you read it.

Measured online. Available everywhere.

The sidometer from nTriones measures a scoop of feed, pellet by pellet, to provide reliable insight into sinking behaviour, size distribution, and the fraction that never reaches the fish, all on site, in minutes.

The sidometer, a stainless-steel online feed quality instrument with a top sample hopper and a results screen

Reduce waste. Reduce risk.

Small changes in sinking behaviour can be the first indication of process instability. The sidometer turns those changes into actionable insight, so you can respond earlier, stabilise production, reduce quality risks and minimise the cost of deviations.

Why feed quality is worth measuring
Up to 50%
of aquaculture costs are related to feed, the single largest input to keep under control.
Hundreds
of pellets measured individually per sample, not a handful checked by hand.
5 min
from scoop to result, on site, with no samples shipped or lab queue.
0
manual cleaning between samples: built-in Cleaning-in-Place (CIP) keeps the column ready for your next measurement.
Why it matters

Turn process variations into competitive advantage.

Most manufacturers discover a process deviation only after it has already affected product quality. The sidometer turns sinking speed into a process indicator, so a drift shows itself while it is still cheap to correct.

Faster troubleshooting

When sinking behaviour shifts, you know which batch and which shift it started on: a starting point instead of a search.

Improved process control

Extrusion, drying, and coating all leave a signature in how a pellet sinks. Measure it continuously, and the line becomes something you steer, not something you inspect after the fact.

More consistent production

A consistent product is more than an average value. The sidometer reveals the full distribution, helping you distinguish between being within specification and being truly in control.

What it measures

See the variation behind the average.

Bulk density, durability, and moisture are essential quality control parameters, but they describe only overall batch characteristics. They do not reveal how individual pellets vary within a batch. The sidometer captures this variation by analysing pellet size and sinking behaviour across a representative sample. Advanced tracking and statistical algorithms convert hundreds of individual measurements into reliable insight for the entire batch.

Many feed pellets sinking together through the illuminated measurement column, each on its own trajectory
Every pellet measured on its own trajectory: the spread is the signal the batch average hides.

Sinking-speed distribution

The full velocity profile of the sample (median, spread and tails), the property that decides where in the water column the feed is available to fish.

Size distribution

We measure the full size distribution across the sample, and whether it sits within your expected range or has started to drift.

Floaters & slow sinkers

The fraction that never reaches the fish: surface waste and benthic loss, convertible directly into kilograms of feed lost per tonne fed.

Density: envelope and bulk

Envelope density inferred for every pellet from its size and settling speed, alongside the sample's bulk figure; the per-pellet spread is what the bulk number on a certificate can't show.

Sinking stability

How consistently each pellet sinks, an early, physics-grounded indicator of structural quality, reported alongside the speed distribution.

This is why sinking behaviour is such an efficient indicator: how a pellet sinks integrates the combined effects of density, expansion, size and structural consistency. One measurement, sensitive to all of them, and because sidometer images each pellet as well as timing it, size and settling speed are resolved separately rather than confounded.

Every quantity is reported at two levels: envelope density (pellet by pellet, the distribution and its outliers) and bulk density (the whole-sample figures mills and farms already exchange, directly comparable with the certificate of analysis).

From the sidometer to your cage

Float and benthic risk, at the salinity you choose.

A pellet that sinks correctly in fresh water can hang at the surface in dense winter seawater, and one that sinks fast in a brackish fjord can shoot past the fish entirely. Because sidometer knows each pellet's size, settling speed and envelope density, the same measurement can be projected into water of any chosen salinity and temperature: your site, your season.

A single feed pellet suspended in the still-water measurement column

Projected float fraction

The fraction of pellets expected to remain at or near the surface under your site's water conditions: potential surface waste and increased exposure to bird feeding, identified before the feed is delivered.

Projected benthic fraction

The fraction of pellets expected to sink through the feeding zone too quickly and reach the bottom uneaten: potential feed loss below the pen and increased seabed loading.

One measurement, every site

Measure a delivery once and predict its expected behaviour before the feed arrives at each site. Understand how the same feed will perform under different site conditions, before it is fed.

How it works

A five-minute measurement, on your site.

No samples shipped, no lab queue, no manual counting. The sidometer stands in your process line, the lab or at the barge.

Feed pellets sinking through the still-water measurement column of the sidometer instrument
Each pellet sinks through an illuminated still-water column while being continuously tracked from two calibrated viewpoints, providing full 3D tracking of every pellet throughout its descent.

Take a scoop, or don't

An operator pours a feed sample into the hopper, or an automated sampler feeds the instrument directly from your line.

Pellets sink through still water

Each pellet sinks through an illuminated column and is tracked in full 3D from two calibrated viewpoints.

Measured on the device

A deep-learning vision pipeline tracks every pellet and computes velocity, size and behaviour: results in minutes, on site.

A signed record, delivered

The full distribution is time-stamped, signed by the device and synced to your dashboard: one record per delivery, kept for good.

The technology

Sophisticated inside, simple on the floor.

Serious measurement science, packaged to run itself and to fit the systems you already have.

State-of-the-art machine learning

Machine learning tracks every pellet as it sinks, and advanced statistical inference turns hundreds of individual measurements into reliable, uncertainty-aware insight about the whole batch.

Seamless factory integration

Automated online sampling, a documented API, a WebDAV endpoint and secure cloud sync let the sidometer integrate into virtually any factory or QC system, so results flow straight into the tools your team already uses.

Industrial-grade design

Precision optics and machine vision are enclosed in an AISI 316 stainless steel cabinet with an industrial touchscreen, bringing advanced measurement technology closer to daily production.

Unattended by design

An instrument that looks after itself.

The sidometer is engineered to clean itself between measurements, ensuring it is ready for the next sample. Built for everyday operation in a feed mill or on a feed barge, not just for life on a laboratory bench.

Self-cleaning

Automated wash cycles keep the measurement column clean between samples and on schedule, with no manual maintenance between deliveries.

Fully automated operation

Scheduling, self-monitoring and safety interlocks on board; health, results and software updates over a secure connection. It runs; you read the reports.

Continuous online sampling

Beyond spot checks: automated continuous sampling integrates the instrument into a mill or factory line, turning feed QC from an event into a process.

Evidence, not opinion

Build customer confidence.

With objective sinking-speed data you can document product performance, support technical discussions with customers, and demonstrate control of your manufacturing process: quantitative, time-stamped and device-signed, batch by batch.

It works in the other direction too. Certification schemes are converging on feed chain-of-custody, and a disagreement about a delivery becomes a five-minute conversation when both sides have the same measurement to point at.

ASC Feed StandardBAP Feed Mill StandardGLOBALG.A.P. v6
DELIVERY RECORD · SID-0042
site     : Site 14, feed barge B
product  : 9 mm grower feed · lot 15313445
sampled  : 2026-07-14 · 14:54 UTC
pellets  : 512 measured
sink v50 : 118 mm/s · spread p10-p90 in spec
floaters : 0.4 %
size drift: none vs. order spec
✔ signed · device N-…-F4 · record immutable
Sinking-speed, size and durability of a feed sample reviewed against its measurement record
Every delivery becomes a quantitative, time-stamped record: the same numbers on both sides of the conversation.
Who it serves

Both ends of the delivery.

The same instrument, three places in the chain.

Feed producers

Catch process drift while it is still cheap to correct, document what left the mill, and ground process changes in measurements rather than anecdotes.

Farms & post-smolt operators

Know what actually enters the water at the site where feed quality matters most, before a sensitive group is fed a degraded batch.

Quality & claims teams

Replace sieve-and-photograph evidence with a per-delivery instrument record that both parties can accept, before a dispute escalates.

Company

Built by people who measure things properly.

nTriones ApS is an engineering company based in Copenhagen, Denmark, developing advanced measurement technology for the aquaculture industry. The sidometer combines precision optics, a controlled hydrodynamic environment, and on-device machine vision in a system engineered for reliable, long-term operation.

The sidometer is already supporting feed production at the world's largest salmon producer.

See your feed measured.

Book a demo, or send us a feed sample and we’ll analyse it for you and give you a closer introduction to the sidometer. A pilot takes one instrument, one line, and a few weeks of ordinary production; we’ll show you the variation your current QC can’t see.

Book a demo
or write us at mail@ntriones.com
Supported by
Innovation Fund Denmark
In operational use with
Mowi