"Straight Line Uh-ohs"
#1
Posted 25 October 2013 - 05:56 AM
Best guesses as to what this nasty stuff is? I am attaching one photo, not because it's good for showing the actual infection site, (or anything else) but because it gives a good impression of the line marching across the fishes' caudals. The uppermost fish, and the onr furthest right, give the best impressions. PA250082.JPG 67.68KB 2 downloads
No time for a better pic or description, but I'm guessing anything that blitzkreigs across a fin like this is reasonably easy to id...
"No thanks, a third of a gopher would merely arouse my appetite..."
#2 Guest_Uland_*
Posted 25 October 2013 - 06:39 AM
#3
Posted 25 October 2013 - 06:32 PM
Thanks, Uland. I can handle your prognosis as it stands for these noobie fish. Will do my best on their account, though. Just as importantly, have you ever had this spread to other, established and healthy, fish? Do I need to be concerned for the rest of the inhabitants, or does it seem to be a problem for the recent arrivals only?
I am now officially a big believer in salt. I am by no means a major player in native fish capture and transport, but I have acquired enough experience to know that no salt-treated fish of mine have ever had problems, but "non-salts", such as these were, are hit and miss in the health/survival department.
"No thanks, a third of a gopher would merely arouse my appetite..."
#4 Guest_Skipjack_*
Posted 25 October 2013 - 07:18 PM
#5 Guest_Uland_*
Posted 25 October 2013 - 09:06 PM
#6 Guest_gerald_*
Posted 25 October 2013 - 11:01 PM
#7 Guest_Irate Mormon_*
Posted 26 October 2013 - 09:24 AM
#8 Guest_bbrown_*
Posted 26 October 2013 - 01:00 PM
#9 Guest_Skipjack_*
Posted 26 October 2013 - 01:14 PM
#10
Posted 27 October 2013 - 08:03 AM
"No thanks, a third of a gopher would merely arouse my appetite..."
#11 Guest_Auban_*
Posted 09 November 2013 - 06:18 AM
i have read that it often becomes immune to one type, only to return after treatment. the last time i treated for it, i used every antibiotic i had on hand, and the deaths ended immediately and the columnaris did not come back.
normally, i prefer not to use antibiotics. with columnaris though, i ran out of patience.
#12
Posted 09 November 2013 - 06:40 AM
Extreme is as extreme does...i know my methods seem extreme to many here, but i have always been most successful with treating columnaris with a shotgun blast of antibiotics.
i have read that it often becomes immune to one type, only to return after treatment. the last time i treated for it, i used every antibiotic i had on hand, and the deaths ended immediately and the columnaris did not come back.
normally, i prefer not to use antibiotics. with columnaris though, i ran out of patience.
In the end, I opted to do nothing but remove the carcasses of those unfortunates who perished. Thanks to input from the folks above, I decided that since this is largely stress induced, and not likely to be contagious, the best course of action would be no action. Why further stress those fish and introduce stress to the established, healthy inhabitants?
I did lose about half the new fish, but the survivors have since bounced back pretty well. Though careful observation will quickly betray the point to which their caudals deteriorated, it will also show that said fins are repaired and healthy and fully functional. Casual observation shows no signs of damage at all. (At least to my untrained eye.) Is this common of columnaris? Not that a ~50% mortality rate is acceptable, but I was expecting a much more gruesome scenario.
Thanks again to all who commented, it probably saved that other 50%, as otherwise they'd have been facing some serious stress in being relocated.
"No thanks, a third of a gopher would merely arouse my appetite..."
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