Sea Salt testing - 2022 update

This is an update of my 2016 article that examines some testing methods to evaluate synthetic seawater, some of which can be done at home. A short history and list of sea salts is also given. Please note - this is NOT a review of brands sea salts, only some ways to make the reviews yourself.
About author
Jay Hemdal
Jay Hemdal has kept aquarium fish since he was four. He set up his first marine aquarium in 1968 when he was nine years old. He later worked part time for many years at various local retail pet stores and fish wholesale companies while he was living at home and then during college. After graduating from college with a degree in aquatic biology, he managed the aquarium department of a large retail pet store for five years until 1985, when he was hired as an aquarist/diver (and later department manager) for a large public aquarium. In 1989, he accepted the position of curator of fishes and invertebrates for another public aquarium, where he remains today. Jay has written over 200 articles and papers as well as seven books since 1981.

Jay has also written for the following publications.

Advanced Aquarist Magazine
Amazonas
Aquarium Fish International
Aquarium Frontiers
Comparative Parasitology
Coral
Drum and Croaker
Freshwater and Marine Aquarium
International Zoo Yearbook
Journal of Aquariculture and Aquatic Sciences
North American Journal of Aquaculture
Progressive Fish-Culturist
Today's Aquarist
Tropical Fish Hobbyist
Zoo Biology

Latest reviews

Clear and succinct information. Nice paper.
Thanks for sharing this information.
Exceptional article. Thanks for posting.
Thanks for supplying your methods and results and discussion you used for comparing between available salt brands. This could be helpful to folks who are trying to decide what salt they should be using in their situations.

Specific thanks for revealing the answer to a salt mystery that I long ago wondered about (Magic Marine Mix). Sweet article!

Article information

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Jay Hemdal
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