Customer Reviews

Rating: 2.7 of 5 stars 7 Reviews 7 Reviews 2.7 out of 5 Stars

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57% Recommend

57% of reviewersrecommend this product

Rating: 2.7 of 5 stars 2.7 / 5

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Instant Ocean Testing Hydrometer for Aquariums

Instant Ocean Testing Hydrometer for Aquariums

7 Reviews

Showing 7 Reviews

  • 5 out of 5 stars

    Fast and cheap

    By on

    I was surprised how fast chewy performed, jst a matter of days not weeks

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  • 1 out of 5 stars

    Not accurate

    By on

    Got my replacement today since the original was cracked upon arrival (thank you Chewy, it’s appreciated) however soon after I realized this thing is extremely inaccurate. Tried getting a reading three separate times (and yes I thoroughly rinsed before each use) and all three time readings were widely different. Even tested it on my tap water. And was still reading salinity. Save your money and get a refractometer instead. Very disappointed.

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  • 5 out of 5 stars

    Hydrometer

    By on

    This works great and I appreciated the ease of ordering and the speed of delivery

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  • 1 out of 5 stars

    Struggling corals

    By on

    I ended up buying the hanna salinity reader after reading bad reviews from this product. Tested both of them next to each other and the hydrometer read lower 1.024 and my hanna read 1.026! Don't waste your money on this product or your corals and fish will struggle. I thought my salinity was great for my corals and now I see it's on the high side.

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  • 1 out of 5 stars

    not accurate

    By on

    Cannot get close to the same reading twice in a row. Very disappointed. With having the Instant Ocean name, thought I was getting a quality product.

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  • 1 out of 5 stars

    Waste of money, realized after 3 uses

    By on

    Not very accurate, best get a refractometer for 7 to 10 dollars more... I'd return this hydrometer if my daughter didnt already destroy the packing.

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  • 5 out of 5 stars

    Great product

    By on

    We've had saltwater fish for years and instant ocean has the best products and affordable.

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