Before measuring millilitres: check the device’s scale and markings worksheet
FishyMag | https://fishymag.com/articles/aquarium-measuring-device-scale-check
Published 2026-11-06

Recordkeeping worksheet. Not a treatment instruction or compatibility clearance.
Keep personal details out of copies you intend to share.

Device make or identifier and capacity:
____________________________________________________________

Printed unit selected:
____________________________________________________________

Known marks and number of equal spaces:
____________________________________________________________

Calculated value per interval:
____________________________________________________________

Manufacturer reading instructions and accuracy information:
____________________________________________________________

Required quantity and unresolved device limitation:
____________________________________________________________

Sources and scope: see the linked article.