disease

Hyposalinity

Reduced-salinity treatment

What does Hyposalinity mean?

Hyposalinity is the practice of dropping saltwater tank salinity from 1.025 SG to 1.009 SG over 48 hours and holding for 30+ days as a parasite treatment.

How is Hyposalinity used in aquariums?

Effective for marine ich (Cryptocaryon) but NOT for velvet (Amyloodinium survives low salinity). Stressful on fish. Not safe for coral or invertebrates. Use only in a fishless quarantine.

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Frequently asked questions

What does Hyposalinity mean in fishkeeping?

Hyposalinity is the practice of dropping saltwater tank salinity from 1.025 SG to 1.009 SG over 48 hours and holding for 30+ days as a parasite treatment. Effective for marine ich (Cryptocaryon) but NOT for velvet (Amyloodinium survives low salinity). Stressful on fish. Not safe for coral or invertebrates. Use only in a fishless quarantine.