That makes a lot of sense! Luckily my tank is currently fishless so I am only concerned about free swimmers right nowI was really enthused by the various possibilities of H2O2, so I did some bench testing. I didn't have any current active disease issues to test it on (but that's a good thing!) so I did some basic chemical tests. I haven't read Humblefish's current thoughts on this (I'll look at it in a bit) but some of his assumptions posted here on R2R some time ago didn't stand up to my testing, specifically in regards to not using plastics, not aerating, etc. Here is the link to what I found:
Hydrogen Peroxide Bench-testing
Bench testing of the effects of hydrogen peroxide in aquariums.www.reef2reef.com
The most important thing I found is that there are now H2O2 test strips (both low and high dose versions) that can be used to actually determine relative activity of the peroxide. I think these are used for potable water testing, but their application is HUGE for aquariums, as peroxide activity is completely dependent on the level of peroxidase in the aquarium, and the only way to know that is through testing.
In regards to using this for Uronema - since that specific issue is intercellular (internal) I do not see how any bath treatment can reach those protozoans to affect a cure. It could have some benefit in limiting the protozoans in the system itself, but once the disease is internal, I can't see how any bath could work. I see that same issue with copper and chloroquine treatments for this problem....they just fail.
Jay
Also worth noting the post I linked was not written up by HumbleFish himself, just posted on his site forum.