Define requirements and constraints
Record the baseline and check schedulable equipment such as lighting. Do not infer the aquarium's condition from a single sign. Measure the real space, identify connections and preserve clearance for cooling and service.
Then compare filtration, heat and circulation that protect livestock with livestock needs and recent changes. Compare useful capacity, energy and compatibility with the complete setup.
Install for future maintenance
Adjust one variable and assess safe recovery after a reboot or lost connection before continuing. Keep a reference so the result can be compared. Test the assembly under controlled conditions and record settings that must be repeated.
Do not rely on a remote cloud service for life-support functions.