Corals are stimulated to expand their polyps to feed by a number of influences. Temperature, the time of the day, oxygen content of the water, water movement, the presence of food or sediment are the influencing factors. So, when is the best time to feed the corals in your tank?

More: Top Coral and Invertebrate Foods Here are some of the top coral and invertebrate foods available on the market today. Compare the Ingredients, Guaranteed Analysis, Active Ingredients and prices of each of these foods before you buy.

Forums: Missing Polyps I had some orange polyp coral and all of it is gone! It never took very well, but some of it was there. Now there is just a white ridge on the ...
Photo by Phyllis Daniels

The very best food you can give your tank critters is exactly what they ate in the wild. The Food Groups of Marine Fishes Table shows you what they ate in the wild and what they need to thrive in your tank.

More: Marine Fish Food Comparison shows you what the commercially prepared marine fish foods on the market contain.

Forums: Frozen food? I want to start to feed frozen mysis shrimp to my 2 clowns. I cannot find them at ...
Photo © Joe Bellantoni

Are you curious about What brand of Sea Salt Mix other people use? How about What Kind of Biological Filtration is most popular? Do you use a protein skimmer? Other aquarists would like to know. Take a few minutes to vote and see the results of the Saltwater Aquarium Setup Polls.

Forums: Speaking of Water I've got a 5 gal bucket with 4 gal (measured) in it and marked. I added 1 1/2 cups oceanic salt and ...

More: How To Setup a Saltwater Aquarium In 10 Easy Steps Step-by-step guide for setting up and starting your new aquarium.
Photo by Paul at Tampa Bay Saltwater

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: Coral Profiles From Acroporas to Zoanthids, browse these mixed soft and stony coral ...

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