All corals have 4 basic requirements which must be met in order to survive in captivity. The specific requirements vary by coral type and species, but the 4 basics remain the same. Once you understand the basics, the rest is easy.

More: Soft Coral Profiles Save yourself a lot of money and heartache by finding out what a coral species requires before you buy it. Soft corals are among the most forgiving so they may be the right kind of coral to start out with. Facts, Information about Soft Corals.

More: SPS/LPS Coral Profiles Hard (SPS/LPS) corals can be a bit more demanding that their soft cousins, but with the right information, you can chose the Hard Corals that will work best in your tank. Here is the information you need to make keeping hard corals in your tank a success.

More: 15 Easy Corals Corals which are more forgiving of less than perfect tank conditions.

Forums: Xenia study Since I pass them each time that I head out onto the reefs, and did notice that wild xenia seem to die off just as our captive ones seem to do. Soooo.....

Photo by Phylis Daniels

Understanding the nitrogen cycle, also referred to as the biological cycle, is essential knowledge for not only cycling a new tank, but also for preventing dangerous ammonia and nitrite spikes in established tanks known as New Tank Syndrome. Here is an easily understood explanation of what the nitrogen or biological cycle is and how it works to keep your aquarium functioning properly.

More: Rapid Nitrate Reduction Water Change Method Reducing your nitrates from 100 ppm to 5 ppm can be accomplished in a few hours and uses far less water than doing repeated 20% water changes over time.

More: Top Nitrate Absorbing Products can reduce your nitrate levels to near zero without repetitive water changes. These products are easy to use and very cost effective.

Activated carbon has many uses in a saltwater aquarium. But, how often should carbon be used and how often should it be changed? These and many more questions are answered about using activated carbon in your system.

More: DIY Carbon Tube Filtration Use Hiatt's Tri-Based Pelletized Carbon and Hiatt's Right Now! bacteria and end up with a fantastic biological filter as well as near zero nitrates.

If you have a Sea Anemone in your reef tank, or are thinking about adding an Anemone to your tank, you will want to examine the results of the recently completed Host Anemone Survey. Their requirement not being well understood, anemones have never been easy to keep in an aquarium for any length of time. The results of this study will show you what works best for them. From how much light and how long to keep the lights on to how often to feed them and what temperatures (this one might really surprise you) they prefer, and more. If you already have an anemone or are thinking about getting one, this information is a must read.

More: Clownfish and their Host Anemone Matches shows you which Clownfish will likely adopt an Anemone for its host.

More: Sea Anemone Facts & Information about a number of Sea Anemones. The profiles include photos, captive care information, Clownfish which they host and more.