Write the next sentence in the following story.

How to breed freshwater angelfish
Use a 20 gallon tank.
Before you begin breeding, you must set up the spawning tank of 20 gallons or larger. Set it up at least 3 months in advance to make sure the conditions are ideal.
A 20 gallon tank is best because angelfish need a tall tank to accommodate their large size. If an angelfish feels cramped, they will not feel secure and will not spawn.