>>56141388water's representation is proportional to how diverse aquatic life is. something like three quarters of all animals live in the water. I almost think aquatic pokemon should have been split into two or even three types, but I'm not sure what you would call them or how they would be differentiated. but there's
really.no other way to avoid that, without severely limiting your available inspirations, or just making pokemon based on aquatic animals but aren't water type. there are a few of those already.