Its all about the dimensions. My 100g is 4ft long. Its just too short, limits my choices so much. Fish used to frequently fight over territory (I don't own territorial fish any more but would like to, hence past tense).
Still the same advice: make your current tanks nice looking, quiet...and sustain a clean room; you may find new spaces besides in your room be available for a large tank...if your patent's finances allow.
Sent from my iPhone using MonsterAquariaNetwork app
Wow, I would have at least picked up and hid all the junk and made my bed first, but yes you should be able to replace your current large tank with a new, slightly larger one...and didn't you at one point have at least one tank sitting on the carpet that you posted a pic of? And BTW I've witnessed my cat jump from the floor to the top of my tall tank(approx 68" floor to lid) many times without much issue, so with a determined cat there is no such thing as too high.
My room is only clean when people come over. Trust me, when people walk into my room they think 'omg its a lil bit a heaven!' With the exception of the crowded and congested fealing and not being able to easily stretch your legs all the way.