display tank, maximum size you're comfortable with

[Black Phantom]

I was lucky as well. I had an extra room in the basement that I closed off and made my inwall 250. I have a 60 gallon sump as well as two 13 gallon frag/mangrove tanks. An upstairs 50 tops it off. Humidity was a problem for a while but I installed a vent system above the 250 that now keeps everything in check. I don't think I would go bigger as I spend too much time in the fish room as it is