The aquarium was developed in 1850 by robert warrington.
A specific aquarium or do you mean like a fish tank in people's homes?
In home. For Fishkeeping, people that like to keep fish in home aquarium's
OH!  My daughter has 2 freshwater tanks.  My dad had saltwater when I was growing up.  It can get expensive.
Had no idea they had both fresh and saltwater aquariums.
Yes, but saltwater fish are MUCH more expensive to buy and they seem to be a bit less hardy.
Ever have any tropical fish?
Yes, even freshwater versions have tropical options.  Like cichlids.
Cichlid
Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, Labroidei, along with the wrasses (Labridae), in the order Perciformes but molecular studies have contradicted this grouping. The closest living relatives of cichlids are probably the convict blennies and both families are classified in the 5th edition of "Fishes of the World" as the two families in the Cichliformes, part of the subseries Ovalentaria. This family is both large and diverse. At least 1,650 species have been scientifically
Aquarium Fish International
"Aquarium Fish International" (AFI) was a North American monthly magazine, published by BowTie Inc. of Irvine, California, and dedicated to freshwater and saltwater fishkeeping and the aquarium/fishkeeping hobby in general. 
History.
Originally titled "Aquarium Fish Magazine" (AFM), the first issue of the magazine was in October 1988. The title of the publication changed slightly beginning with the February 2007 issue; the new title was "Aquarium Fish International". It had a circulation of 31,170