Thanks for the compliments! They are all together now, in the 75 gal tank and look beautiful together! I moved them 1.5 weeks ago. I like having them all together in one tank. And I like having only one tank to clean and feed.

They all get along really well with each other and don't seem to have favorites, everyone likes everyone.
I can now see the attraction to having many goldfish, but I my tank may be full with these 4, since they are comets/shubunkin and can grow to be 10-12". If I get another one, it will only be one more. Not sure if that would be ok tho, I'd rather be under-stocked than over-stocked. Does anyone have any advice on getting one more?
Flurry has a bit of a swim bladder problem, which seems to be directly related to what she eats. I noticed this before I moved her. It only pops up when I feed the crisps, so I'm not feeding those any more and she's ok.