How many fish in a 20 gallon tank
If you are a devoted and avid fish keeper, then your home fish tank may soon change from a 5 gallon tank to a 10 gallon tank, and soon from a 10 gallon tank to a 20 gallon tank, right? Keeping a tank of fish indoors, changing water, feeding and enjoying after work, can relax the nervousness, which is very good for physical and mental health. So, the question is, in the face of a large 20-gallon tank, how many fish should be kept? Calculation of aquarium water surface area To determine how many goldfish an aquarium can hold, you need to know the water surface area of the aquarium, and the fish tank calculation of the capacity also requires the use of the water surface area. This is easy to calculate by following the example below. The length of the aquarium multiplied by the width is equal to the water surface area, and the aquarium water surface area multiplied by the height to get the volume of the fish tank. If the dimensions of an aquarium are: 60CM, 30CM, 40CM, this in...