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What is Saltcorner?

Saltcorner is a website that is dedicated to the hobby of marine aquarium keeping and is the creation of aquarium author Bob Goemans, who has written a column of the same name for many years.

Whether you're looking for information about animals and plants/algae; for informative articles by noted aquarium authors; for product or book reviews; for photo galleries of impressive home aquariums; for information about Bob's books; or troubleshooting/advice correspondence on a wide range of topics, there's a lot of information here. And it's all free to you thanks to the generous support of our website sponsors who keep the website's lights turned on.

Use the tabs above to navigate to different parts of the website, or click on any link that catches your eye. I hope you find the site useful and informative!

Article Spotlight

A Buyer's Guide To Calcium Additives

By Matt Clarke

Calcium is essential to the growth of coralline algae and most invertebrates, especially corals. It is taken up rapidly during growth and needs to be replenished regularly. It's just one of a group of water parameters, including alkalinity, magnesium and salinity, that need monitoring closely if you keep inverts, and it's important that the levels are maintained at a concentration similar to that of natural sea water. In the case of calcium, that's somewhere around the 400 - 420ppm mark. If the levels of these minerals drop too low, it may have a detrimental effect on coral growth and health....read more.

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NEW!Book Spotlight:


The 'Living' Marine Aquarium Manual



Read it HERE for FREE! No need to sign up. No catches. No gimmicks.

Photo Gallery Spotlight


See more in Bob Goemans' "Home Office" gallery.
See other galleries.

Review Spotlight

Book Review of The Captive Reef

By Dana Riddle

TITLE: The Captive Reef AUTHOR: Dana Riddle PUBLISHER: Coralife Publication ISBN 0-9640147-2-6 PAGES: 297 PRICE: $29.95 "The Captive Reef, A Concise Guide To Reef Aquaria In The Home," is presented in 34 chapters followed by an Appendix dedicated to the testing of various aquaria lights. Without attempting to name each chapter, I think it may suffice to say that the book is also divided into three main parts. Part One is devoted to "The Natural Environment." It encompasses the work explained in chapters 1 - 4, i.e., the natural habitat, anatomy of corals, and, photosynthesis and zooxan...read more.

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Q&A Letter Spotlight

Tom Gray writes to Bob about: Bio-Balls, Trickle Filters & Plenum

Dear Bob, I have several reef systems that have a plenum system installed with a trickle filter. All of the systems have sufficient live rock included in the aquarium itself and a good protein skimmer. They are stocked with numerous corals and a moderate number of fish. Would you agree that the systems would function best without the bio-balls in the trickle filter? Wouldn't the trickle filters function as a sump without the bio-balls? I have one 400 gallon system that has bio-balls added in a header box and in a sump where they are completely submerged by water, as well as bio-balls in a...read more.

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