Herbie it struck me since yesterday your tank invader might be responding off initial slight insults because you never presented that before. perhaps just the slightest orp plus or minus was combined with a confounding variable we dont know, but is probably average among tanks, to get your results. it was also pleasing to start slow just to see if these opportunities appear before we are on the strong dosing approach
I am in day 2 of 3 day blackout. Tank is wrapped so Zero ambient light. I am also dosing 50ML of H2o2 twice a day into 250 gallons net volume. Still would like to know why ORP drops instantly to sub 200 levels when H2o2 is dosed. It rebounds back to the 330-350 level in an hour or so. You would think it would boost ORP quickly since it's an oxidizer. PH isn't affected, and ORP is inverse to PH. When the Dino's are busy creating massive bubbles which I assume are oxygen, it raised my PH about .2 - .3 points. Of course when this happens, ORP drops down a good amount. So I guess in theory ORP should drop when you introduce H2o2, but PH is not affected. Hmmm, just a ramble from a non-chemist...
This is a keen observation. one of the oldest peroxide discussion threads, with RC old timers who dont post here any longer, is from 2009 titled just that. orp drop with peroxide addition, its linked in our thread but buried under too many pages to find lol trust me its here somewhere in pre merge rc. bomber is the main contributor to analysis in it
There is paradox mas when it comes to using peroxide in the reeftank, this is one.
Making predictions (while using it safely for the keeper agreed) is fun and quite accurate nowadays as those using it on this thread arent going to be reporting any strange mass casualties...but back in the 09 days the lingo is much more weary about using it, who can blame anyone for hesitantly adding a strong oxidizer. I do not blame them now, there are so many options in reefkeeping.
an additional prediction to ponder lies in a part of peroxide dosing we dont know...the long term implications to microbenthic and bacterial communities.
there are no formal works on it to cite, and no threads about it, we are all guessing.
So far early concern predictions havent exactly panned out about tankwide use of peroxide... so keep in mind there is every possibility for micro life forms to follow the highly predictive scale of macro life forms in tanks getting dosed with peroxide for whatever reason. there is clearly no instant effect, too many people using now to deny. the long term awaits, I fully expect it to show in my tank when that breakdown happens because the reefbowl is driven harder on 35% percent more than any tank in existence its a fair testbed.
plus at its size and age, maladies register ten times faster than a large average age tank its a canary in the mine as I trust the method and am willing to be a testbed among several.
the list of known sensitives:
lysmata species, all
anemones although loss hasnt occurred they do act mad
coralline can lighten or bleach, but rebounds fast
xenia can be affected
tmz and others reported copepod loss in dips using more than 1:10 strength
nontarget macros may or may not be affected
its always my assertion for someone to consider the list and consider the target before dosing...can you move the ball of chaeto to another tank etc and how tired are you of dealing with the target? I was pretty dang fed up with gelidium wrecking my ancient pico reefs when someone convinced me to tap into the medicine cabinet for a cure.
The most profound thing that came to me out of the massive peroxide overdose thread linked to us a few pages back is that peroxide is likely the least ecologically affective thing we can add to our tank per unit of measure. Kalk, alcohol, magnesium, two part solutions, all are more dangerous to a tank, to verify someone should run the 190:10 dosage test in any other test tank and report back what survives.
I do not thing peroxide is the solution to all things its just a current fun thing to discuss. for dinos in my own tank it would be lights out and a small pH bump first, but am glad to see and discuss whats been going on so far.
