Marine Depot

Until recently the one aspect of a reef tank that was most often overlooked was water movement. Creating adequate water movement can be one of the least expensive aspects of setting up a reef tank, but it is one of the most important. Proper water movement is important for a number of reasons. First of […]

Considering all of the equipment that has come on the market over the past two decades, the only piece of equipment that remains indispensable is the foam fractionator or protein skimmer. Its use has revolutionized the keeping of marine organisms, especially corals and other marine invertebrates. It is called a protein skimmer, due to proteins […]

Setting up a tank and getting it to run successfully is fun and exciting. Maintaining it properly is neither fun nor exciting, but it is crucial to the long-term health and success of the tank and its inhabitants. Unfortunately, the mundane task of maintenance is an often-overlooked aspect of a successful tank. While maintaining a […]

One of the main reasons that reef hobbyists give up their tanks is that they grow tired of constantly battling algae. Eliminating algae completely is quite difficult, but it is very possible to control its growth. This can be done once an understanding of what produces algae is achieved. The two major culprits for the […]

In part one of this article, I offered a simple introduction to endeavors of coral propagation. As marine aquarium hobbyists and reefkeepers, we are reminded of the need to understand how and when to propagate our corals, almost every month or week, as we watch them grow. At minimum, we propagate corals to prune growth […]

After being in the hobby for almost 23 years and having kept reef aquaria for most of them, it is still amazing that the most frequently asked question is still how to eliminate problem algae. After trying just about every method for doing this out there really are two simple answers: reduce your bioload and […]

Due to vacations, other recreational activities and lack of time, our tanks may no longer look their best. When this happens we generally notice that a lot has happened to the tank that needs improving. Algae may be a little thicker, the water may not be as clear and the corals may not be as […]

Metal halide lamps are now available in a wide variety of wattages as well as color temperatures. Wattage determines how much light is produced, with higher wattage bulbs producing more total light. However, the amount of light produced is not in a direct 1:1 ratio with the wattage. That is, a 1000-watt bulb does not […]

It has long been recommended that ozone be used in marine tanks for many reasons including its ability to kill many pathogens and make the water crystal clear. Ozone (O3), which is an unstable form of oxygen, acts by oxidizing with (giving up an oxygen molecule to) anything that it comes in contact with. In […]

Unlike most other topics in the hobby, lighting remains a very controversial and often misunderstood subject. This is because there are so many good options available to light a reef tank, and how a tank is lit depends not only on its size, but also what is going to be kept in it. It is […]