Formulation evidence record

Fritz Aquatics FixIck

External parasite treatment · US formulation

Shrimp

Amano, cherry, crystal and other freshwater shrimp.

Do not use

Snails

Nerite, mystery, ramshorn and other aquarium snails.

Do not use

Live plants

Rooted and floating live aquarium plants.

Caution

Scaleless fish

Loaches, corydoras, plecos, eels and other scaleless species.

Compatible

Marine invertebrates

Corals, anemones, starfish and marine crustaceans.

Do not use

Not addressed by the manufacturer for: 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

Manufacturer advises against

Fritz marks snails and other invertebrates not recommended. Shrimp fall under that heading, so this is a remove-the-livestock treatment despite containing no copper.

Contains gentian violet, with a source-linked caution associated with this group. This raises a flag—it is not the basis of the verdict above.

“Snails and other invertebrates Not recommended”

manufacturer page · fritzaquatics.com · checked August 16, 2026

Snails

Manufacturer advises against

Named directly in the compatibility table as not recommended.

Contains gentian violet, with a source-linked caution associated with this group. This raises a flag—it is not the basis of the verdict above.

“Snails and other invertebrates Not recommended”

manufacturer page · fritzaquatics.com · checked August 16, 2026

Live plants

Caution

Fritz refuses a straight yes or no here and says tolerance depends on the species — an honest answer, and one that means a planted tank is a judgement call rather than a clearance.

“Live plants Depends on species”

manufacturer page · fritzaquatics.com · checked August 16, 2026

Scaleless fish

Manufacturer states compatible

Scaleless species are marked compatible, which is notable for a dye-based parasite treatment — the class most often flagged as hard on them.

“Scaleless species Yes”

manufacturer page · fritzaquatics.com · checked August 16, 2026

Marine invertebrates

Manufacturer advises against

Coral is marked not recommended alongside invertebrates generally.

Contains gentian violet, with a source-linked caution associated with this group. This raises a flag—it is not the basis of the verdict above.

“Coral Not recommended”

manufacturer page · fritzaquatics.com · checked August 16, 2026

Product details

Manufacturer states it treats: Ich, External aquatic parasites
Chemical filtration: Not stated by the manufacturer
Ingredients as stated: Gentian violet.
Active ingredients: Gentian violet

manufacturer page · fritzaquatics.com · checked August 16, 2026

Record last checked August 16, 2026 · confidence high

Check against your tank

Change what is in your tank to see how the answer moves.

1 Choose the treatment

External parasite treatment · US formulation

2 Select everything in the tank

Assuming a common community tank. Change the selection, or save your tank so every page answers for it.

The manufacturer advises against using this with your tank.

At least one thing you listed is named in a warning. Move that livestock to another tank, or choose a different treatment.

This answers for the assumed selection above, not a tank you have described. Adjust it if it is not yours.

ShrimpManufacturer advises against
Fritz marks snails and other invertebrates not recommended. Shrimp fall under that heading, so this is a remove-the-livestock treatment despite containing no copper.
SnailsManufacturer advises against
Named directly in the compatibility table as not recommended.
Live plantsCaution
Fritz refuses a straight yes or no here and says tolerance depends on the species — an honest answer, and one that means a planted tank is a judgement call rather than a clearance.

See the manufacturer’s exact wording and sources for Fritz Aquatics FixIck →

No evidence found means no manufacturer statement was found — not that the product is safe. FishyMag does not diagnose disease or recommend treatments.

Next steps

Check against my tankSee how Fritz Aquatics FixIck and every other treatment compare against what you actually keep.Compare with another treatmentPut Fritz Aquatics FixIck beside up to three alternatives, group by group.Work out your real water volumeDose against the water your tank holds, not the number on the box.

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.