When I see issues, it is almost always within 2 weeks. You're right, moving the fish is the one big stressor that can kick the parasites back into high gear.
What did you do with the copper levels in the hospital tank after the 30 days?
Yea it always worked for me
45 days total in QT
I would say that the problem was not with the fallow, and that the issue was dropping the copper in the QT, thus letting any ich to reattach to the fish before going into the display again.
Just curious which copper medication did you use? And what level was it at
What temperature was your DT at? 81 degrees is the minimum that works for 45 day fallow periods. back in the day, we ran our tanks at 82 - 84, but now days, people keep their tanks cooler.
Cupramine at .5 read with the hanna checker.
Tank temp varied from 78-80. Wasnt sure if raising the temp would negatively effect my corals and BTA
80 would probably be ok, but I've only done this at 81+. I do know that 78 is too low. I'm not sure why a couple of degrees seems to make so much of a difference. We used to use 35 days at 82 degrees back in the 1980's. I believe that was based on some work by Paul Chueng.
I believe you can access the original thesis (I have a copy). You're right - there are a number of issues with the study - and then everything piles on after that. I am curious, though - what is your opinion about CI surviving prolonged periods in hypoxic environments (which I have heard is another reason people have used a longer fallow period) - and also as a potential reason for the seemingly unexplainable tank that has been 'fallow' for a long time (76 days) - and fish appropriately qT,d, nothing else added and CI or some other parasite 'pops up' after a period of stress?
Though its considered 'rare' - is there not some evidence that CI can also hitch-hike longer than might be controlled by TTM? I.e., in the gills, where it might be invisible in low numbers.
I've read the original papers EXCEPT Colorni's thesis, I'd like to see that. He talks about CI living in xeric culture, but that isn't our aquariums, not by a longshot. In terms of hypoxic environments, not sure how that would work - think about this; the tomont is sequestered in a crevice with no oxygen. That in turn limits the heterotrophic bacteria that would otherwise degrade it. At some point though, the tomont forms tomites and these turn into theronts that can somehow maneuver out of the crevice that bacteria were unable to get into?
I think that is possible, but TTM does seem pretty effective for controlling CI for a lot of folks, so if that happens, it is pretty rare. I think the life cycle of Amyloodinium makes that a more likely culprit for surviving TTM. I'm more worried about the secondary issues with TTM - not controlling flukes, physical damage to the fish, etc.
This was reported by Humblefish some time ago - Might have been from the article below from U. Florida (I included some of the temperature data as well for interest):
Thanks - agree with this. Another issue (to me) - is that if you believe the polls here - 60-80 percent of people 'do not QT at all' and have 'no problems'. So - that would suggest (to me- assuming those numbers are correct) - that 60-80 percent of people doing TTM - or QT are also going to have 'no problems'. I'm just curious what you think about that thought?
Wow 60-80 percent of people don’t quarantine and don’t have any problems? That’s crazy to think about
Well - the reason I put 'no problems' in quotes - is that there are also a lot of people who have said 'I never quarantined until I added Fish X and my whole tank was wiped out'
