Wow, thank you all for your thoughtful responses - I appreciate it and am newly encouraged
Touchofsky - it is great to see you around again - it has been awhile and I was worried about you - you helped me so much back when Nugget was sick (he's fine now except for this newfound floatiness). I'll be happy to try the soaked shrimp pellets and zucchini. I am happy to try anything
GlassGoldfish - you know there were several times that I thought it could be the Progold (even though I started soaking it) but kept dismissing that idea since it has such a good reputation. You see I made so many changes to my tank and fish care regimen at once several months back. One of the changes I made was changing from OSI Spirulina Aquarium flake food and OSI Goldfish flake food to Progold. Nugget never had constipation/SBD disease on these flake foods but I wanted to go with the best so I made the switch to Progold. Then I got a new fish and had to deal with a bacterial infection, parasites, etc. I think that is all over with but now my fish are both floaty. I kept thinking they were still sick from something or it was due to some other change I made (switching to Prime and adding too much?) but it could very well be the Progold since I made that change at the same time.
I am going to try to switch from Progold to the other foods mentioned - I might even try making my own gel food.
One thing though - if Progold makes them floaty would you expect that medigold, metromed or jumpstart would also cause floatiness? I have used these before but don't remember things being this bad (although I can just be much more observant now that I read this site

)
Thanks again, sea