Water Testing

Salinity Meter / Refractometer

Salinity Meter / Refractometer — helps with marine fish stress, coral disease.

Solves
Marine fish stress, coral disease
Best for
Saltwater aquariums
Price range
$15–$80

Roughly nine out of ten disease calls trace back to a water-quality slip you could have caught early. Salinity Meter / Refractometer turns invisible problems into a number you can act on.

Where it really pays for itself is marine fish stress, coral disease. That is the exact failure point behind several of the conditions in our library, so addressing it directly shortens treatment time and cuts re-infection.

How to use it well

Hyposalinity is a key treatment for marine parasites. Treat it as part of a protocol rather than a magic bullet — it works best alongside good husbandry and the medications matched to your specific diagnosis.

Conditions it helps with

On our disease pages you’ll see this equipment recommended for conditions such as:

  • Marine Ich
  • Marine Velvet
  • Amyloodinium

Who it’s for

Best suited to saltwater aquariums. Typical units run in the $15–$80 range, depending on capacity and features. Use the inquiry form below to ask about a specific model, request a recommendation for your system size, or get notified when stock and pricing are confirmed.

Inquiry form

Request info on this equipment

Ask about a specific model, request a recommendation for your system size, or get notified on pricing and availability.