My current ONLY Shubunkin, this little guy (only ~4.5") was a $4.95 purchase and a test for my Bowfin, aparently, he/she was too big to get eaten...I have since moved this beautiful fish to my 55gallon feeder stock tank. (where his new name is King Shu!)
This is pic isn't of the tank, but it is where I hold my smaller commons in good conditions, prior to letting them play with my oscars or bowfin...
These 3 big Shubunkins (as ID'd by Lupin, as I wasn't sure what they were due to size) were a rehome from a 30g bow, that's a human skull in a 90 gallon for comparisons...Each 9-10" easily. They now live in an outdoor pond that I am regularly helping the owner with maintenance.