This is not towards a certain tank or fish. In freshwater we tend to over stock tanks due to stop aggression or just because we want lots of fish. Now most people who over stock also have filtration the is double or triple what would be normal. Now what do people think about over stocking saltwater tanks, not talking about a tang in 20 gallon that is a size issue. Would you ever overstock, appropriately sized, and just have extra filtration?