Well....so far the best thing that worked was for my Sims to simply outright buy the museum as a residence.
They have maxed money and when they sold their furniture they got the money back that they spent on buying the museum.
I got fish in the tanks (the two large ones are a cc) Fish bowls you can put fish into at any time regardless of the lot, but tanks won't and I honestly don't understand what the difference is in that? To me it's probably an oversight on Maxis' part. I tried generic and it didn't work and I couldn't do retail because I didn't have a cash register, but couldn't place it on a table or bar so I gave up on that one ugh. Anyway, doing it this way was super fast and not bad at all. Getting the fish in the tanks then going back to buy the regular home was quick and painless. My boys simply had to suffer through the welcome wagon all over again lol Thanks to @Daephene for the neat idea about putting the mounted fish behind their corresponding bowls! I have to organize them better, but the concept is up at least. Thanks to everyone that helped with the suggestions!
https://i.imgur.com/NLCZsBL.pnghttps://i.imgur.com/cluKslr.png
