Marine Aquarium Acronyms: RO/DI Defined

As most marine aquarists will tell you—and as we point out frequently here at Saltwater Smarts—using purified source water for initial aquarium fill-ups, partial water changes, and freshwater top-offs is essential to maintaining the best possible water quality in a…

5 Tips for Maintaining Stable Salinity in a Saltwater Tank

While salinity and other water parameters are relatively constant on the natural coral reefs, they’re highly prone to undesirable fluctuation in the closed system of a marine aquarium. As conscientious hobbyists who want to provide the most naturalistic environment possible…

BGA Battle Plan: Controlling Cyanobacteria in Saltwater Aquariums

You’re relaxing in front of your saltwater aquarium, enjoying the beautiful undersea vista you’ve created when you notice a few red, algae-like patches on your live rock that weren’t there before. You reach into the tank and give one of…

A Guide to Routine Marine Aquarium Maintenance

There’s no question that a saltwater aquarium requires a significant amount of maintenance if the fish and invertebrates it contains are to remain healthy and their life-support system is to continue functioning efficiently for the long term. But that doesn’t…

How to Arrange a Vacation Sitter for Your Saltwater Aquarium

You’re getting ready to depart on a well-deserved summer vacation, and everything is falling into place nicely. You’ve purchased airline tickets, made all your hotel reservations, and packed everything you could possibly need at your travel destination. You’ve even made…

The Minimal Role of Mechanical Filtration in Marine Aquariums

Mechanical filtration—the physical straining out of suspended particulates from aquarium water—has something of a mixed reputation among marine aquarium hobbyists. This may seem odd to those with experience in the freshwater side of the hobby, where the use of hang-on-back…

Putting Aquarium Water Parameters to the Test

It’s crucial to keep tabs on several key aspects of water chemistry if you want to succeed with a saltwater aquarium. That means you’ll have to develop the habit of testing certain parameters on a routine basis. But that doesn’t…

The Ebb and Flow of Marine Aquarium Water Movement

Water on the coral reefs is ever on the move. Constantly shifting currents, changing tides, and rolling or crashing waves make for quite a dynamic environment that saltwater aquarium hobbyists must attempt to recreate in their systems for the health…

Saltwater Aquarium Water Change: a Maintenance Cornerstone

When it comes to maintaining exceptional water quality and healthy, vibrant livestock, marine aquarium hobbyists have no greater ally than the humble water change. No filter, skimmer, reactor, ozonizer, UV sterilizer, or any other “izer” should be considered a substitute…

Protein Skimming: Bubble Your Way to Better Water Quality

Saltwater aquarium hobbyists today have a dizzying array of devices, doodads, and doohickeys at their disposal for improving water quality and maintaining appropriate water parameters. Some of these items are essential for aquarium success, while others might be more appropriately…