These small, beautiful fish have color patterns which almost defy description. Considered by many to be difficult to keep because of their specific diet requirements. In the wild, the Dragonets' diet consists almost solely of Amphipods and Copepods, which most mature reef or FOWLR tanks already contain in some quantities. With a little patience, most of these fish can be trained to take Brine and Mysis Shrimp and other hand fed foods.

While all of the species are stunning, the Striped or Green Mandarinfish and Spotted Mandarinfish are most hobbyists' favorites.

More: View terrific photos of Dragonets/Mardarinfish. The outrageous colors of these fish are truly unbelievable.

More: DIY Refugiums are easy and inexpensive to build. Perfect for growing macroalgae as well as Copepods and Amphipods.

Photo By Andy Wakefield

Even in the Wonderful World of Marine Worms, there are The Good (Featherduster), The Bad (Lined Fireworm) and The Ugly (Spaghetti Worm). You may already have some of these in your tank and not even know it.

MORE: Reef Safe Invertebrates Not all invertebrates are "reef safe". Many of them will tear up corals, consume fish and otherwise destroy other tank inhabitants... Read More...

MORE: Bristleworm Control Tells you how to eliminate Bristleworms from your reef tank.

Photo © Keoki Stander

Contrary to popular belief, a vast majority of corals are not autotrophic, requiring only light to survive. Autotrophs produce their own food from inorganic material they extract from their surrounding environment, usually using sunlight to synthesize it with the aid of zooxanthellae algae. Giving your corals some extra food can really perk them up and increase their reproduction rate.

More: Exactly What Do Corals Eat?? Corals, for the most part, are carnivorous, feeding mostly on small animals (zooplankton) suspended in the water column of the ocean ...

More: When Do Corals Eat?? You might be surprised... While you are sleeping, guess what your corals are doing?

Photo © Rick Herring

Is it really possible that sharing a very dry Vodka Martini with your saltwater aquarium can reduce your nitrate (NO3) and phosphate (PO4) levels? Charles Delbeek (Marine Biologist currently at the Steinhart Aquarium in San Fransisco, CA) says you can. Here's how...

More: Long Term Nitrate (NO3) Reduction Here is a method to easily, inexpensively and permanently reduce or eliminate Nitrates (NO3) in a Saltwater Aquarium.

More: Rapid Nitrate (NO3) Reduction Water Change Method is water change method that can reduce high accumulated nitrate (NO3) in saltwater aquariums quickly and safely, and includes an animated graphic of the process.