I build aquariums for a living! I am a hobbyist as well and keep some aquariums at home! How about you?
I don't but I am fascinated by them.  What kind of fish are in your aquarium?
Awesome! I keep exotic fish, turtles, and aquatic plants in my tanks! I love feeding them at work.
That is so cool.  Is it hard to build auariums?
Correct! I always admire Robert Warington because he developed the complex idea of an aquarium in 1850!
That is quite a while ago.  Can you keep things other than fish in an aquarium?
Aquarium
An aquarium (plural: "aquariums" or "aquaria") is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic reptiles such as turtles, and aquatic plants. The term "aquarium", coined by English naturalist Philip Henry Gosse, combines the Latin root "aqua", meaning water, with the suffix "-arium", meaning "a place for relating to".
water-filled tank in which fish swim about. Small aquariums are kept in the home by hobbyists. There are larger public aquariums in many cities. This kind of aquarium is a building with fish and other aquatic animals in large tanks. A large aquarium may have otters, turtles, dolphins, and other sea animals. Most aquarium tanks also have plants.
An aquarist owns fish or maintains an aquarium, typically constructed of glass or high-strength acrylic. Cuboid aquaria are also known as fish tanks or simply tanks