Formulation evidence record
Fritz Aquatics MetroCleanse
Internal parasite treatment · US formulation
Shrimp
Amano, cherry, crystal and other freshwater shrimp.
Snails
Nerite, mystery, ramshorn and other aquarium snails.
Live plants
Rooted and floating live aquarium plants.
Not addressed by the manufacturer for: scaleless fish, marine invertebrates, biological filter. No statement was found, so no verdict is given — that is not a clearance.
Why FishyMag says this
The manufacturer's own wording, quoted rather than paraphrased, so you can judge it yourself.
Shrimp
No evidence foundFritz does not publish a species compatibility table for this product, unlike most of its range. Metronidazole appears in ParaCleanse, which Fritz does clear for invertebrates — but that clearance belongs to that formulation, not to the molecule.
No manufacturer statement was found for this group. That is not the same as a clearance — treat it as unconfirmed and ask the manufacturer before dosing.
Snails
No evidence foundNo manufacturer statement about snails was found for this formulation.
No manufacturer statement was found for this group. That is not the same as a clearance — treat it as unconfirmed and ask the manufacturer before dosing.
Live plants
No evidence foundNo manufacturer statement about live plants was found for this formulation.
No manufacturer statement was found for this group. That is not the same as a clearance — treat it as unconfirmed and ask the manufacturer before dosing.
Product details
- Manufacturer states it treats
- Internal parasites, Protozoan infections
- Chemical filtration
- Not stated by the manufacturer
- Ingredients as stated
- Metronidazole.
- Active ingredients
- Metronidazole
manufacturer page · fritzaquatics.com · checked August 16, 2026
Record last checked August 16, 2026 · confidence medium
Check against your tank
Change what is in your tank to see how the answer moves.
Internal parasite treatment · US formulation
The manufacturer has not addressed part of your tank.
Silence is not a clearance. Where no statement exists, treat it as unconfirmed and ask the manufacturer.
This answers for the assumed selection above, not a tank you have described. Adjust it if it is not yours.
- ShrimpNo evidence found
Fritz does not publish a species compatibility table for this product, unlike most of its range. Metronidazole appears in ParaCleanse, which Fritz does clear for invertebrates — but that clearance belongs to that formulation, not to the molecule.
- SnailsNo evidence found
No manufacturer statement about snails was found for this formulation.
- Live plantsNo evidence found
No manufacturer statement about live plants was found for this formulation.
See the manufacturer’s exact wording and sources for Fritz Aquatics MetroCleanse →
No evidence found means no manufacturer statement was found — not that the product is safe. FishyMag does not diagnose disease or recommend treatments.
Other treatments
Next steps
FishyMag reports what manufacturers say, quoted and linked. It does not diagnose illness or recommend a treatment, and it never infers that a product is safe from the absence of a warning — where no statement exists, it says so.
Formulations change. Always read the label on the bottle in your hand, and contact the manufacturer if your tank contains anything valuable or unusual.