During the Victorian era, fishkeeping became a popular hobby among the affluent class in Britain. While fish tanks as we know them today were not yet common, wealthy Victorians often kept fish in ornate glass or metal containers known as "aquaria" or "aquatic vivariums." These early fish tanks were typically small and could be quite elaborate, featuring intricate designs and decorations.

Victorian-era fish tanks often housed freshwater fish species such as goldfish, minnows, or guppies. The tanks were usually placed on tables or stands in parlors or drawing rooms, where they served as decorative pieces and conversation starters.

Maintaining water quality and fish health in these early tanks was challenging, as filtration and aeration systems were rudimentary or nonexistent. Water changes and cleaning were necessary to keep the fish healthy, and the aquarium's design often included space for plants to help oxygenate the water.

While Victorian-era fish tanks lacked the technology and understanding of modern aquarium keeping, they laid the foundation for the hobby as we know it today. The fascination with keeping and observing fish in captivity continued to evolve, eventually leading to the development of the modern aquarium hobby.