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First Saltwater Aquarium
French biologist notes having kept the first saltwater aquarium.
(https://en.wikipedia.org/wiki/Aquarium#History_and_popularization) -
First mechanical air pump invented
Pump was powered by water instead of electricity
(https://en.wikipedia.org/wiki/Aquarium#History_and_popularization) -
First plastic shipping bags used to transport fish
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Silicone and tar used to seal tanks
Metal braces would corrode, but silicone advanced to make the metal purely aesthetic.
(https://en.wikipedia.org/wiki/Aquarium#Design) -
Fish Keeping 2nd most popular hobby to stamp collecing
