FishyMagEvidence-led tank care

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

Check the evidence boundary

What this record can—and cannot—answer

Bottle identity

US formulation · label revision: not recorded · version: not recorded.

Match the label and concentration on your bottle before using a dose ratio.

Unresolved groups

Biological filter

Missing evidence is not a compatibility finding.

Product combinations

No specific interaction warning is recorded here. This is not a complete interaction review or permission to combine treatments.

Evidence age

Formulation record checked August 16, 2026. Source dates can differ within the record. A dated check is not a guarantee that the label has stayed unchanged.

Prepare a manufacturer question →

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.

The biological filter is included in every non-empty tank check, alongside your selected groups.

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 selected group is named in a warning. Read the exact instruction and ask the manufacturer to clarify your setup before dosing.

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.

  • Biological filterNo evidence found

    No statement from the manufacturer was found for this group. Treat it as unconfirmed and check with the manufacturer before dosing.

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.

Other treatments

Seachem ParaGuardFritz Aquatics Algae Clean OutFritz Aquatics Mardel CoppersafeSeachem CupramineAPI Liquid Super Ick CureSeachem MetroPlexSeachem PolyGuardFritz Aquatics PraziCleanseAPI General CureFritz Aquatics ParaCleanseSeachem KanaPlexSeachem NeoPlexSeachem FocusSeachem StressGuardAPI MELAFIXFritz Aquatics Expel-PFritz Aquatics MaracynSeachem SulfaPlexAPI PIMAFIXFritz Aquatics Maracyn TwoFritz Aquatics Maracyn OxyFritz Aquatics Expel-FFritz Aquatics MetroCleanse

Next steps

Does this record match your bottle?Compare the name, market and label details. Download unresolved identity questions.Resolve an unanswered question about Fritz Aquatics FixIckDownload the evidence and a manufacturer enquiry with your bottle details and livestock groups.Keep a treatment recordRecord what was actually used and when. Save on this device or export for a support conversation.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.