Check adult requirements
Record the baseline and check waste transformed rather than removed when eaten. Do not infer the aquarium's condition from a single sign. Confirm scientific identity, adult size, diet, social behaviour and swimming zone.
Then compare the cleaner animal’s own welfare needs with livestock needs and recent changes. Look for genuine overlap in water, flow, territory and feeding throughout the year.
Assess compatibility and welfare
Adjust one variable and assess siphoning, food control and filter maintenance before continuing. Keep a reference so the result can be compared. Plan the complete group and monitor feeding, breathing, injury, shelter and space use.
Every added cleaner also adds respiration, faeces and care obligations.