Ingredient risk record
Neomycin sulfate
Also appears as: neomycin
An aminoglycoside antibiotic for bacterial infections. Its record is a useful warning about reading a whole product page rather than one line: Seachem describes it as well tolerated by invertebrates in one place and instructs keepers to remove all invertebrates in another. Both statements are on the same page.
Source-linked caution for
The evidence is formulation associated. It raises a warning on a product containing this ingredient but never decides the verdict.
“Remove all invertebrates - these are extremely sensitive to medication.”
manufacturer page · seachem.com · checked August 16, 2026
“It is well tolerated by invertebrates, although delicate species may be stressed.”
manufacturer page · seachem.com · checked August 16, 2026
The inference only runs one way
A product containing neomycin sulfate gets a warning. But a product without it gets nothing — no clearance, no green tick. Fritz Algae Clean Out contains no copper and is still explicitly unsafe for shrimp and snails, which is why FishyMag will not certify a product as compatible unless the manufacturer says so directly.
Treatments containing neomycin sulfate
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.