What should I do now?
See today’s dose, upcoming tasks and what deserves attention.
NEW HYDRA AQUA
Your aquarium leaves clues.
Learn to understand them.
Track your aquarium’s parameters, fertilization, maintenance and development. Hydra Aqua connects the context to help you understand what is changing and identify the most useful next step.
Free forever 30 days of Pro with no card required for your first aquarium
01 · LOGGING IS JUST THE START
A logbook stores data.
Hydra Aqua helps you interpret it.
A single value rarely tells the whole story. Hydra Aqua brings together measurements, water changes, fertilization, light, CO₂ and history to identify trends and likely relationships—without turning correlations into certainties.
What is changing?
Track trends and temporal relationships between parameters and events.
What should I do next?
Get a useful next step tailored to the context you have logged.
02 · HOW IT WORKS
From logging to decision.
- 01
Log
Parameters, maintenance, fertilization, light and CO₂.
- 02
Connect
Organizes changes and events on the same timeline.
- 03
Recommend
Suggests the most useful step based on the available context.
- 04
Learn
The more context you log, the more personalized the analysis becomes.
03 · A COMPLETE EXPERIENCE
Everything you need, at the right time.
From today’s routine to long-term development, each area answers a different question.
TODAY
Your next action, without the noise.
Today’s dose, water change and priorities brought together on one screen.
TRENDS
See the trend, not just the latest value.
Compare parameters and events over time.
INSIGHTS
Likely relationships, clearly explained.
Understand which changes coincide over time and what is worth confirming.
HYDRA REWARDS
Your Hydra points and benefits, always close at hand.
Track your balance and available rewards in the same experience.
04 · DEMO WITH REAL DATA
Context turns numbers into useful clues.
In “Living Room Aquarium — Demo”, Hydra Aqua tracks eight weeks of records and shows a temporal relationship between a lighting change and the development of the parameters. It is a clue to investigate, not an assumed causal link.
8weeks of data
39measurements
8water changes logged
83stability
100%data confidence
50→60%lighting change
05 · START WITHOUT BARRIERS
Free forever.
30 days of Pro with no card required.
Create your first aquarium, start logging data and try for 30 days how Pro analysis uses context to become more useful.
No card during the trial
Free forever after the trial
First aquarium with 30 days of Pro
06 · FREQUENTLY ASKED QUESTIONS
Before you begin.
The essentials about access, data and using Hydra Aqua.
What is Hydra Aqua?
It is a web app for logging parameters, fertilization and maintenance, tracking trends and turning your aquarium history into clearer next steps.
Do I need a card to get started?
No. Your first aquarium includes 30 days of Pro access with no card required, and you can continue on the Free plan after the trial.
What happens to my data if I return to Free?
Nothing is deleted. You keep the access included in the Free plan, and your Pro history becomes available again if you decide to resubscribe.
Does Hydra Aqua replace testing and maintenance?
No. The app organizes the context and presents likely relationships and cautious suggestions. Decisions and changes always remain under your control.
Can I use it on my phone and computer?
Yes. Hydra Aqua works in the browser on your phone, tablet or computer, with no installation required.
HYDRA AQUA
Your aquarium is already giving you clues.
Start logging them and better understand what is changing.
Start for free Free forever · 30 days of Pro with no card required for your first aquarium