The MACI framework
MACI AQUARIUM
An aquarium does not need you to do more. It needs to gain capacity.
Learn to build, understand, and turn around living aquariums without turning them into a chain of cleanings, products, and rescues.
Start from your real situation
Three paths. One clear criterion.
You do not need to understand all of MACI at once. Choose the entry that matches your aquarium today.
Something is going wrong
Dying fish, cloudy water, algae, damaged plants, or values that do not explain what is happening.
I want to build or turn around
Build an aquarium with plants, margin, and internal capacity before depending on constant corrections.
I want to understand MACI
Discover why MACI reads an aquarium as a living system rather than a maintenance routine.
The right entry depends on your moment
Two books for a practical start
Build or turn around
MACI — The Easy-to-Run Manual
The practical entry for building a stable aquarium or restoring margin to the one you already have.
Read before acting
Aquarium Diagnostic Manual
For when something is failing and you need to separate symptom, process, and decision.
Open Beta · Free · 1 aquarium · 11 official languages · multilingual chat
MACI Guardian
Your aquarium, with memory.
Talk with the context of your aquarium, preserve its history, record measurements and events, see progress in graphs, analyse images, and use deterministic calculators.
- Public registration is open during the Beta.
- Free account: one aquarium.
- Image generation: up to 5 per day; AI features remain subject to Beta capacity.
Time, observation, and real systems
The framework is grounded in aquariums that keep working.
MACI evidence shows continuity, biological margin, and system response. These are not recipes to copy: they are cases that teach you how to read.