I understand that filtration needs to be sufficient for the size of the aquarium, but is it enough just to provide enough filtration for the amount of fish in the tank? For example, I have 10 guppies that I am going to move from a 20 gallon tank to a 55 gallon tank and the filters I have for the 20 gallon are rated to be for 30 gallon aquariums. If I move those filters over to the 55 gallon aquarium and don’t add anymore fish, is that filtration sufficient for the bioload? Or is it more important to cycle ‘x’ number of gallons per hour?