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So this has been going on entirely too long. The articles Humblefish suggested are very good, but I am having trouble finding the right antibiotic. I have tried pretty much everything and nothing seems to help. From what I have read I need an antibiotic that kills for anaerobic gram - negative bacteria. All the articles I have read suggest many for aerobic gram-negative, but not anaerobic. Can anyone suggest the strongest, most effective antibiotic that specifically fights anaerobic gram - negative bacteria??
Unfortunately, this stuff is hard to get without a Rx:
CHLORAMPHENICOL:
Chloramphenicol has in vitro activity against most anaerobic bacteria (gram positive/negative), and aerobic gram-positive bacteria making this one of the more effective antibiotics I have ever used for fish due to its wide spectrum effectiveness, especially as per many aquatic bacterial pathogens (and even some parasites too).
Unfortunately the toxicity of Chloramphenicol, which has been linked to the development of aplastic anemia (a rare but potentially fatal condition) and dose-dependent leukopenia, has made this antibiotic impossible to find for most aquarists due to strict regulation, with Kanamycin Sulfate the closest substitute (although still not as useful in my experience)
Source: http://www.americanaquariumproducts.com/AquariumMedication2.html



