I found out something interesting today. Bigger fish tanks are easier to mantain than having smaller tanks, because the shear volume of water, so the more water there is the more forgiving it can be in terms of water chemistry. The only problem is that when perfoming a water change it will actually take longer to do so. Bigger tanks are also forgiving in the filter breaks. Its also easier to to maintain the temperature in bigger tanks because they heat up and cool down faster.