This is my 60 gallon goldfish tank.

Fancy goldfish require high levels of dissolved oxygen in the water in order to survive or reach adulthood. Not to mention, it will keep your tank from smelling fishy. In order for this to happen 2 conditions need to be met. Surface area, shape, and size The first crucial part to achieving healthy oxygen levels inside your fancy goldfish aquarium is making sure that the tank is the right shape. The oxygen enters the tank from the surface. This means that the larger the portion of water that…