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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


By Articles from

(Posted with and Breefcase's permission from works written in Apparently, the pH calibration fluids sold in the United States are all derived from National Institute of Standards and Technology (NIST) standard pH solutions. (I believe this explains why we Yanks use calibration solutions which have pH values of 4.0, 7.0 and 10.0, instead of the 5.0, 7.0 and 9.0 solutions commonly used is Europe, where the use of pH meters for aquariums originated.) Assuming that bit about NIST solutions to be true, the big enemy of old calibration fluids would be CO2 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 Tracy Gray's "200 US gallons" gallery.
See other galleries.

Review Spotlight

Product Review of e-Fins Easy ATO Kit

Manufactured by e-Fins

After maintaining aquariums for over fifty years, I've found replacing evaporated water always one of their most necessary and regular maintenance tasks. Everything from simple drip lines with IV type controls to very expensive computerized equipment, some that were even used in hospitals, have been tried to make that chore less time consuming. Did I find a device that was 100% dependable and needed no follow-up except for keeping the water reservoir full? Not really, but close, yet they were quite expensive and needing fine tuning as to the daily quantity dosed because of seasonal changes in more.

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Q&A Letter Spotlight

Sean Benson (Phoenix, AZ) writes to Bob about: Algae Control

Hello Bob, I have a few questions if you have the time. Here's my problem. I keep getting hair algae, it starts real slow, but gains speed and then I must clean my rock to gain control. This is a yearly thing. I also just went through a bad cyanobacteria problem but one of those antibiotic additives cured the problem. As you know from a previous letter, I have a 135 gallon custom-made tank with a built-in plenum. My tank has never really been without hair algae and not sure why. I use many types of snails and crabs as well as 2 burrowing stars and a cucumber. My water specs are as more.

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