• Free Shipping on all orders over $49 • $5.99 Flat Rate Shipping on orders under $49.

  • blue_solid_circle-white_bg-svg

  • Free Shipping on all orders over $49 • $5.99 Flat Rate Shipping on orders under $49.

Navigate to the www.marineandreef.com homepage

-

10% OFF sitewide COUPON CODE through the end of June. MORE INFO.

10% OFF sitewide COUPON CODE through the end of June. MORE INFO.

10% OFF sitewide COUPON CODE through the end of June. MORE INFO.

You are here: Home > MAINTAIN > Hydrometers & Refractometers

Aquarium Hydrometers & Refractometers

We have hydrometers, electronic salinity testers, and both digital and non-digital refractometers for measuring aquarium salinity. Hydrometers are cheap, but not that accurate. Refractometers are more accurate and last longer. We have our own MarineAndReef.com REEFractometer.If you need salt, we have that as well, but it is not the best price because it's very expensive to ship. It's one of those things we don't mind you getting at the local store. Useful Links: Hydrometers & Refractometers Article. Related Products: Aquarium Salt.

Filters

Filters

Sort By:
Products per page
Apply Filters
More Info Product button block

  • Please contact us with any questions you have.

  • [email protected]

    We answer all emails through 3 PM the same day (M-F).

  • (480) 491-5283

    Monday-Friday 9:00 am to 11:00 am & 1:00 pm to 3:00 pm MT. We will return all phone calls through 3 PM the same day.

    Note: we do not have daylight savings time in Arizona

© 2025 www.marineandreef.com
blue_solid_circle-white_bg-svg
Empty Cart