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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

The Zoanthids: Sea Mats, Yellow Polyps, and Button Polyps

By James W. Fatherree, M.Sc.

Zooanthids are relatively small "soft corals" that can come in a wide range of attractive colors and patterns. They tend to be easy to care for and very hardy, and many can grow quickly, making various sorts great additions to a reef aquarium. So, this month we'll take a look at some basic zoanthid information, the common varieties you'll see for sale, the differences between them, and how to take care of them, etc. Name games: To get started, let's look at some often confusing name game stuff. All of the types of zoanthids are members of the biological Order Zoanthidea, which is part o...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.

Review Spotlight

Product Review of Mini-cal Calcium Reactor

Manufactured by Marine Technical Concepts

Mini-Cal Calcium Reactor: (Written in 2003) As for calcium reactors in general, if you maintain a reef aquarium and don't have a calcium reactor you're missing out on an easy way to maintain a very stable environment. When a reactor is used it ends having to prepare and add Kalkwasser and/or dosing other type calcium and buffer additives. Imagine not adding either or most other additives. Many of those who still use these additives don't realize they are fighting the calcium and buffer war or simply adding unneeded constituents to the bulk water. They may add calcium one day and buffer ...read more.

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Q&A Letter Spotlight

Ron Byrd writes to Bob about: Flatworms

Dear Bob, We have chatted many times about many aquarium things, and all your advice has been quite helpful. Now, another problem, - flatworms, and lots of them on several corals. Please help once again! Ron Byrd [response] Hi Ron, Yes, we have chatted numerous times, but the record is 127 emails with a reader in Cape Town, South Africa, so you have many to go before we get near that amount! As for flatworms, there are numerous different species of parasitic ‘planaria’ flatworms. Yet, the ones I've seen the most are on soft corals and look like brown freckles with a forked tai...read more.

See other Letters and Answers.
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