Yes, they do release Oxygen, in the form of bubbles, when placed in water (normally a live bait tank for minnows). I made a small airtight container with a connection to my normal bubbler hose, filled it 3/4 full of water, dropped in a tab, sealed the container, and waited - - and the result I had was there were barely any bubbles being released from the tab. I bought a couple of tabs off ebay - perhaps they were old and degraded. I'm not sure how much (if any) the tablets are supposed to "fizz". The tablets are available new for 79 cents each, but they only come in a box of 18 cards, two tabs per card, at that price. I didn't want to get an entire box only to find out my scheme would not work.
I really thought if they released enough Oxygen that it would speed up regeneration - and eliminate the need to add peroxide.
Ken
--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@...> wrote:
>
> Are they supposed to release oxygen in gaseous form? Maybe they work
> differently.
>
> ST
>
> On Fri, Jul 10, 2009 at 7:05 PM, Ken Stuempges<ozarkshermit@...> wrote:
> > Well - I had to try it at least . . .
> > The Oxygen tabs I tried did not generate enough oxygen to make many bubbles in the tank. Perhaps the tabs were old, but I doubt if new ones would have been much better.
> >
> > Ken
> >
>