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MANUFACTURER QUESTION BRIEF — Seachem SulfaPlex

Database market: US. Record checked: 2026-08-16.

My bottle / market / label revision: Not supplied — check the bottle before relying on this record.

Other products already used: Not supplied; no combination assessment has been made.

Shrimp: Manufacturer advises against
The directions instruct removing all invertebrates. Note this is the same sentence Seachem prints across its medication line rather than a finding specific to sulfathiazole — the instruction still stands, but it is blanket guidance, not a test result for this chemistry.
Source (2026-08-16): https://www.seachem.com/sulfaplex.php

Biological filter: No evidence found
No statement from the manufacturer was found for this group. Treat it as unconfirmed and check with the manufacturer before dosing.
No supporting evidence recorded.

QUESTIONS TO SEND TO THE MANUFACTURER

Does your guidance apply to the exact bottle/market described above and to these groups: Shrimp, Biological filter?

Please clarify any cautions, conflicting wording or undocumented groups above. Does your answer depend on water dosing versus food or a separate bath?

Do products already used, filtration media or other equipment change the instruction? Please provide the applicable label or written directions.

I will attach photographs of the front/back label and provide exact species, tank details and product-use history when contacting you.

Manufacturer product page: https://www.seachem.com/sulfaplex.php

Evidence record: https://fishymag.com/treatments/seachem-sulfaplex

This draft reports dated documentation. It does not establish treatment suitability, diagnose illness, recommend a dose or clear a combination. Nothing is sent automatically.

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