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.

Flash view this gallery of 51 to 55 gallon reef tank pictures that have been chosen as the best for aquariums of this size submitted by site visitors. Systems that contain simple to expansive live rock arrangements that house a variety of soft and stony corals with other sessile invertebrates, as well as some including select motile invertebrates and reef safe fishes, these aquarists' photos show what they have done to bring an amazing little slice of the ocean into their homes.

How To: Submit a Photo For Display

Learn More: About Saltwater Aquariums Photo Contest

Photo by Alex Olavarria

If you have been thinking about building an acrylic aquarium, but thought that acrylics were too hard to work with, here is the perfect project for you. Building this Hang In/On Tank Refugium (use for growing nitrate reducing Mangroves or Algae, or a 'Pod Farm) will give you the experience and confidence you will need to build that acrylic tank you have always wanted. Complete with parts list, instructions and photos.

More: Building A Refugium What is a Refugium, anyway?
Photo © Stan Hauter

Are your tank temperatures heading for the red zone on the thermometer? Don't want to spend a half a month's pay on a chiller? These simple DIY Chiller Plans from Don Carner might be just the ticket.

More: Combating Rising Tank Temperatures in Hot Weather: Here are some helpful tips for keeping your tank temperatures at an acceptable level.

Forums: Icecap fans I need to add a cooling fan to my canopy because my pc lights are producing too much heat. It seems that the icecap fans are...

How often should your fish be fed, anyway? Once per day? Twice? Every two or three days? Feed too often and a lot of the food will end up on the bottom of your tank, creating even more nitrates. Not often enough, the health of your fish will suffer.

More: Marine Fish Food Comparison Easy way to compare the contents of the most popular fish foods.

More: Top Foods of Choice for Fish and Invertebrates. Compare Prices on the Top Flake, Granule, Pellets, Frozen and Natural Fish Foods.

Have you been thinking about starting an aquarium or wanting to set up another one, but find you can't afford to do so? It is much easier than you might think to build your own glass tank. By following these simple Do It Yourself aquarium plans and instructions from your Guides you can do it, and save $$ in the process. What are you waiting for?

More DIY Info: Glass Thickness Calculator Determine the glass thickness which will work best for your DIY tank. You may be able to use a thickness which is less expensive with the same results.

More DIY's: DIY Refugium Plans & Setups Easy to build refugiums with many uses (grow your own copepods or algae).

More DIY's: DIY Seahorse Tank Seahorses prefer a different type of tank (taller, rather than wider) than you normally find in your LFS or online. Here are complete plans and instructions for a terrific DIY Seahorse Tank which will cost you about $25 to build.

Are air stone bubbles a sufficient source of oxygen? Just how efficient are those little bubbles that come out of air stones, or diffusers? Many aquarists believe they play an important role in an aquarium when it comes to oxygenation and aeration of the water, and that this air source is adequate. Not so! Low DO (Disolved Oxygen) levels in your tank water can cause a myriad of subtle problems. Fortunately, it isn't hard to increase your DO with little to no money.

Forums: Oxygenation?? Through education I've come to realize this exchange takes place at the surface level of the tank. Not in the bubbles down the ... Do you agree? We'd like to know.

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.

With all of the possibilities out there, choosing a filtration system for your tank can seem like a daunting task. Fortunately, there is a fairly simple method for selecting the right filter system for your tank.

More: About Using Canister Filters Used for mechanical, chemical, and/or biological filtration in saltwater aquarium systems, these compact units can efficiently handle all of your aquarium filtration needs.

More About Canister Filters: Regular tank maintenance becomes a whole lot easier when you use these filters. Read the information in the Top Canister Filter Picks to see which one will work best for your tank.

Exactly how do you tell these two Clownfish species apart? Most people can't tell the difference between them, but if you know which three characteristics to look for, it's actually pretty easy. --

More: Top Clownfish Photos Gallery Here is a collection of outstanding photos of many species of Clownfishes.

Still More: Clownfish Profiles If you already have, or are thinking about adding a Clownfish to you tank, you might want to see what the requirements are for your specific species.

Forums: "True" vs "False" Percula Clown ID? It seems that there is still a lot of debate. Anyone have any input on the subject?
Photo by Steve Whitt