Precision aquarium monitoring

Your tank,
understood.

ATS is a scientific monitoring platform for planted tank hobbyists and professional aquarium maintenance technicians. Log parameters, calculate dissolved CO₂, and get AI-powered insights — all in one place.

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Built for precision

Everything you need to
understand your water.

From daily parameter logging to long-term trend analysis, ATS gives you the tools to make informed decisions about your aquarium — whether you manage one tank or forty.

10 tracked parameters
pH, temperature, ammonia, nitrite, nitrate, CO₂, KH, GH, TDS, and phosphate — with custom target ranges and min/max bounds for each.
Trend charts
Visualize every parameter over time with session-aware charts. Pre-CO₂ and mid-photoperiod readings render as distinct lines on the same axis.
AI-powered insights
Powered by Claude. Analyzes your full parameter history, CO₂ estimates, livestock, and tank profile to surface actionable recommendations.
Export & import
Your data is yours. Export a full JSON backup at any time and restore it on any device. No account required, no lock-in.
Session-tagged logging
Tag each reading as pre-CO₂ or mid-photoperiod. Backfill prior days with the date and time selector — log on your schedule, not the app's.
CO₂ estimation
Calculates dissolved CO₂ automatically from your KH and mid-photoperiod pH using the standard carbonate equilibrium formula.
What you track

Every parameter that matters.

Built specifically for planted aquariums with CO₂ injection. Target ranges are pre-configured for high-tech setups and fully adjustable.

pH—6.4 – 7.2
Temperature°F74 – 80
Ammoniappm0 – 0.25
Nitriteppm0 – 0.1
Nitrateppm0 – 20
CO₂ (calculated)ppm20 – 35
KHdKH2 – 5
GHdGH4 – 10
TDSppm100 – 250
Phosphateppm0.1 – 1.5
CO₂ estimate
28.4 ppm
target 28 ppm · range 20–35
20▲ 28 target35
optimal
Derived from
Mid-photo pH
6.9
×
KH
3.5 dKH
→
Est. CO₂
28.4
3 × KH × 10^(7 − pH)
Who it's for

Built for two kinds of obsession.

01
Planted tank hobbyist

The precision hobbyist

You're running a high-tech CO₂ setup. You care about pH swing, KH buffering, and nitrate creep. You want to correlate your bubble rate with dissolved CO₂ over time — not guess.

  • Track pre-CO₂ and mid-photoperiod pH separately
  • See calculated dissolved CO₂ from your own readings
  • Get plant and livestock-specific AI recommendations
  • Log the parameters you test each day, skip the ones you don't
02
Professional maintenance

The maintenance technician

You manage dozens of tanks across multiple clients. You need consistent data across accounts, historical context on each tank, and a tool that keeps up with your workflow.

  • Tank profiles with full equipment and livestock records
  • Per-tank parameter history and trend analysis
  • Export client data as structured JSON for records
  • AI insights tailored to each tank's specific setup
AI insights

A specialist in
your corner.

ATS uses Claude, Anthropic's AI, to analyze your parameter history alongside your tank profile — fish, plants, substrate, fertilization routine, and CO₂ system — to surface insights a generic app can't.

It knows the difference between a pre-CO₂ pH reading and a mid-photoperiod one. It understands what a KH of 2 means for a planted tank running 30 ppm CO₂. It gives you a real analysis, not boilerplate advice.

AI Insights Powered by Claude
Tank chemistry is stable overall. CO₂ is dialed in — pH swing suggests injection is consistent. Nitrate trending upward; water change recommended within 2–3 days.
Dissolved CO₂ at 28.4 ppm — optimal range for monte carlo and anubias. pH swing of 0.9 indicates consistent injection timing.
Nitrate has risen from 8 → 16 ppm over 6 days. Consider a 30% water change before next fertilizer dose.
KH holding at 3.5 dKH — good buffering capacity for your CO₂ target. No KH adjustment needed.
Temperature 0.8°F above target — may increase plant metabolism slightly. Monitor if climbing further.

Ready to know your
tank precisely?

ATS Aquarium Monitor is free to use. Bring your own Anthropic API key to unlock AI insights.

Open ATS Monitor →
No account required · Data stays in your browser · Export anytime