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Discussion Starter · #1 ·
I recently had a BAD cyano outbreak and began to treat it by doing a 40% water change while sucking out as much of the cyano as possible, blacking out the tank (on day 2 of black out), and using 2.5mg/l of azithromycin. Has anyone used this antibiotic before? I know that erithromycin is the standard antibiotic that is used to treat cyano but i assumed both of these antibiotics are of the same famly. Does anyone have any experience with this in particular medication used for treating cyano?
 

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Nope, but it should work fine. As a physician, I'd really prefer to see azythromycin used sparingly. Basic e-mycin is already well established in the veterinary trade and should be quite a bit cheaper.
 

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Discussion Starter · #3 ·
thanks for such a quick response. The reason i went with azithromycin is because i had it in the house. I also figured that i dont have any livestock in the tank (other than plants) so i figured how much damage could it do.
 

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For one particular application, the risk of harm is vanishingly small.

When you add up how much is being tossed around in the environment, resistant strains can be selected for in just a few short years. It's a cumulative effect.
 

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Listen to the doctor :)

The issue of resistance in an aquarium environment isn't just with livestock (i.e. the bacteria that normally colonize livestock). An aquarium environment also houses multitudes of bacteria species that can live outside an organism. These bacteria can develop resistance over repeated exposures. If they become pathogenic (i.e. causing disease in other organisms), including humans, then it becomes a problem.
 

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if you still need to use a treatment for BGA I would switch to erythromycin for the time being.
 
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