Barbie wrote:It's actually an antiprotozoal, not an antibiotic, it just has some antibiotic side effects.
Barbie
I beg to differ.
Quote from drugs.com
"Metronidazole
(me troe NI da zole)
Flagyl, Flagyl 375, Flagyl ER, Protostat
What is metronidazole?
• Metronidazole is an antibiotic. It fights bacteria in your body.
• Metronidazole is used to treat infections such as abdominal infections, skin and tissue infections, bone and joint infections, gynecologic infections, and respiratory tract infections.
• Metronidazole may also be used for purposes other than those listed in this medication guide."
Quote from chemfinder.com
"Antiprotozoal, antithelmintic and antibiotic. White to pale-yellow crystalline powder
Chemical formula = C6H9N3O3"
Also -
"Flagyl S suspension contains the active ingredient metronidazole, which is a type of medicine called an antibiotic. (NB. Metronidazole is also available without a brand name, ie as the generic medicine.) Metronidazole is used to treat infections caused by bacteria and other micro-organisms called protozoa.
Metronidazole works by entering bacterial and protozoal cells and interfering with their genetic material (DNA). It damages the DNA and also prevents the bacteria and protozoa from forming new DNA. This ultimately results in metronidazole killing the micro-organisms, which clears up the infection."
And its still not designed for, or tested for, use in the aquatic environment.
So it is unknown how this accumulates in the fish (although it does have a quick half life, especially in the aquarium and under lights)
Just be careful - thats all I was getting at.
Hope your fish are OK
Tom