Dupla has released what they say is the world’s first ornamental fish food to contain hemp. Dupla Marin Gel-o-drops 24 Algae & Hemp are individually packaged gel portions containing sea lettuce and 4% hemp. The hemp provides vegetable protein, amino…
Dupla Marin P4 4-channel dosing pump keeps it basic
Dupla Marin has awoken from its slumber and shortly after the introduction of its high precision hydrometer, it is ready to make another big push with the Dupla Marin P4 Dosing Pump. The Dupla P4 is not in any way…
Using the Dupla Marin hydrometer as a hardware salinity reference
The Dupla Marin high resolution Hydrometer came along at a time when we are really becoming quite critical about salinity measurement. This large, oversize hydrometer is specially designed to measure seawater salinity at 25C/77F but only between 33 and 38 parts…
Dupla Marin calibrated hydrometer reads specific gravity in high resolution
It’s been a looooong time since Dupla made waves in the reef hobby outside of Europe but its new Dupla Marin Hydrometer, a new high-precision and accurate hydrometer, might get them back on the map. You may be asking yourself “why…
