Welcome back to fish keeping and to AA...
The "rules" are from lessons learned... In the end, you will have the final say on your path to success.
What size tank are you planning on? Lots of space to put one now!
You sold the piano! What are you going to replace it with? A portable keyboard and fold up stand work great, you can put them in a closet or under the bed when not playing...
Freedom is not free, support the troops!
If you can read this thank a Teacher, because its in English thank a Veteran.
110 Gallon FOWLR, 25 Gallon sump/refugium.