Whether you’ve got a 10-gallon fish aquarium kit or a 20-gallon fish aquarium kit, the process is relatively similar. If this is your first time being a fish parent, starting with a 10- or 20-gallon aquarium kit and filling it with smaller, hardier species is a good idea. Place your aquarium in an area that won’t be impacted by external light and heat sources, away from windows and heater vents.
Rinse your aquarium and any items going in it with water before setting up. Add the gravel and any plants and decorations, and then the water. Install your heater, hook up your filter and place the hood and tank light on the aquarium. For more details on putting together your aquarium kit, check out our helpful guide, Aquarium Setup: How to Setup a New Freshwater Aquarium.