This product was added to our catalog on Monday 30 January, 2012.
OCEANIC SYSTEMS INC. - OCEANIC BIOCUBE MINI HYDROMETER
Biocube Mini Hydrometer can remain submerge in aquarium, letting you know your salt level at a glance. Compact design allows for discreet placement in aquarium, will not interfere with view. Ideal for saltwater aquarium and sumps.