Water pumps come in various sizes and strengths, so select a pump that is appropriate for the size of your tank and the number of goldfish you plan on keeping.
Do goldfish need a water pump in the tank?
Yes, a water pump is necessary for a goldfish tank. A water pump helps to circulate and oxygenate the water in the tank. It also helps to keep the water from becoming stagnant, which can lead to the growth of harmful bacteria and algae.