melypr1985
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Metroplex and Focus
Metronidazole: Treats internal parasites (worms), Brooklynella; possibly Uronema marinum.
How To Treat - Metro can be found as a stand-alone drug (ex. Metro+, Seachem MetroPlex) or incorporated into a multi-purpose medication (ex.API General Cure). It is best to soak it in the fish’s food; however it can also be dosed directly into a quarantine tank. Use until symptoms (white stringy poop) are gone.
Whether or not metro is “reef safe” is a topic for debate. The general consensus is that while soaking it in fish food IS “reef safe,” dosing it directly into the water column IS NOT and should only be done in quarantine.
Pros - Can be soaked in fish food, making it (somewhat) reef safe.
Cons/Side Effects - In my experience, certain fish seem to have an adverse reaction to it. But these are in the minority.
Info on flukes
https://www.reef2reef.com/threads/flukes-–-general-guidelines.224423/
Info on intestinal worms:
Internal/intestinal parasites:
Symptoms - Internal parasites are also “worms,” but these target a fish’s intestines. As a result, the main symptom is white stringy poop. It has to be white; brown stringy poop, for example, can just mean intestinal irritation which requires no treatment.
Treatment options - API General Cure (a medication containing both praziquantel and metronidazole). Some species of internal worms are resistant to prazi, while others are resistant to metro, but usually not both. :wink: Seachem MetroPlex can be dosed directly in QT, or soaking fish food with it provides an alternative (and reef safe) treatment option. Two other available options are: Paracide-X (mixed in food) and Paracide-D (in-tank treatment).
Metronidazole: Treats internal parasites (worms), Brooklynella; possibly Uronema marinum.
How To Treat - Metro can be found as a stand-alone drug (ex. Metro+, Seachem MetroPlex) or incorporated into a multi-purpose medication (ex.API General Cure). It is best to soak it in the fish’s food; however it can also be dosed directly into a quarantine tank. Use until symptoms (white stringy poop) are gone.
Whether or not metro is “reef safe” is a topic for debate. The general consensus is that while soaking it in fish food IS “reef safe,” dosing it directly into the water column IS NOT and should only be done in quarantine.
Pros - Can be soaked in fish food, making it (somewhat) reef safe.
Cons/Side Effects - In my experience, certain fish seem to have an adverse reaction to it. But these are in the minority.
Info on flukes
https://www.reef2reef.com/threads/flukes-–-general-guidelines.224423/
Info on intestinal worms:
Internal/intestinal parasites:
Symptoms - Internal parasites are also “worms,” but these target a fish’s intestines. As a result, the main symptom is white stringy poop. It has to be white; brown stringy poop, for example, can just mean intestinal irritation which requires no treatment.
Treatment options - API General Cure (a medication containing both praziquantel and metronidazole). Some species of internal worms are resistant to prazi, while others are resistant to metro, but usually not both. :wink: Seachem MetroPlex can be dosed directly in QT, or soaking fish food with it provides an alternative (and reef safe) treatment option. Two other available options are: Paracide-X (mixed in food) and Paracide-D (in-tank treatment).


I have 2 that are my favorites, it would be hard to lose them. At least you're better prepared if something comes up in the future.

