And that is where I am blessed. The basement is all mine! muahahaha
I envy you. I have often planned what I'd do if I had the space for a dedicated fishroom. At one time in the past I had over 40 tanks spread all over the flat we had back then.
ATM I have 3 tanks, 4ft, 3ft, and 2ft and a fair size pond in the garden along with various tubs I use for breeding daphnia, pond plants and some of my goldfish fry. I'm coming up against staunch resistance to my idea of another pond, and I think the idea of more tanks would be even less well received.