@boopboopboopbadoop
Here’s that concept room we were talking about!
The curvy bit at the top is supposed to illustrate a cut out of the ceiling, which is also part of the custom tank.
You have thick (but can be made thicker of course) tank walls, which I filled with some coral and stones for enrichment, but I wasn’t sure how far I could take it. I haven’t added any fish, just because I wasn’t sure what to draw.
The floor is covered in a soft, sand colored carpet, with imprints of shells on there. There is two rock-like beanbag chairs with foot stools for lounging. There is a person sketched on top just to show the purpose.
The circles are soft lighting made to look like giant bubbles. They would cast a blue tint to the room, but ultimately there would be a big (waterproof) light installed on the ceiling with a little air so there would be room for little waves to make ripple motions of light across the room.
The coral in the top right corner is actually a bass stand. As water is good for muffling sounds, in this future house you can use it as a place to practice without disturbing your family. The little pirate chest could be where you could store sheet music.