Weird slimy algae type stuff...

I have actually full dose erythromycin(maracyn) with no ill effects on the bio filter.

you should keep an eye on the parameters but it does have a history of having no effect on the beneficialbacteria(some anti biotics are specific to the bacteria they affect)

Odd. I read just the opposite and that is exactly what happened to my tank. I had to cycle all over again AND I was half dosing. I guess each tank is different.

Q
 
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