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…

New DuplaRin Mar food comes in handy “click-to-feed” dispenser

DuplaRin Mar is a new food for saltwater fish from Dupla but another interesting feature is the click-to-feed container that Dupla seems to be rolling out on some of its granular foods. The container contains a button on the side that…

DuplaRin Coral Food released overseas

Dupla Marin, one of Germany’s preeminent aquatic companies, recently released DuplaRin Coral Food for your corals and other filter feeders. This tasty snack is a micro-fine powder is packed full of cnidarian goodness. Made up of eight essential amino acids to help…

Now this is what you call balling

Three dosing pumps? Four dosers? Five? Puh-lease. Unless you are rocking six or more uber expensive, super precise peristaltic dosing pumps to individually add every single bit of ions to your trendy reef tank, you are just a poseur. If…