sentences:  A typical household freshwater aquarium set-up, apart from its aquatic tenants, consists of furnishings such as a gravel substrate, live or plastic plants, rocks, driftwood, a backcloth or background, and other decorations.Other equipment includes a canopy or hood as an aquarium cover, an aquarium stand or base, lighting accessories, a heater, a thermometer, air pumps, filtration apparatus, airstones, fish food, a fish net, water conditioner, water quality testing kits, a siphon hose or gravel cleaner, and a bucket for water changes.Surface area and height are important in the set-up and maintenance of a living biotope.