"Good. With my tweaks and the Veela’s wards, even the water should be similar to the Black Lake. it should be a seamless transition between the waters." That was something we had to check at the last minute. The waters in Hogwarts were technically colder, but where the tribe was, was closer to the castle which heated the waters enough for them. This lake would have that same warmth but throughout the whole lake, which ought to be an improvement for the Merfolk.