Fluval Sea Aquarium Hydrometer, Medium

$9.82 (-34%) Chewy Price
$14.99 List Price

In Stock
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About This Item

Details

  • Offers an easy and accurate way to monitor and measure specific gravity and salt levels in marine aquariums.
  • Specifically designed for marine aquariums to help maintain the health of marine fish and invertebrates.
  • Designed with easy-to-read markings and a green section that clearly indicates the ideal salinity range.
  • Installs on the inside of your tank and is easily disguised thanks to the slim, low-profile design.
  • Can also be used as a portable device that’s easily submerged in the water for routine readings.

Questions & Answers

1 Customer Questions


What is temperature is this item caliberbated at

Answer by ChewyApr 07, 2020
The Fluval Sea Hydrometer is calibrated to 24°C (75°F).
2.5
Rated 2.5 out of 5 stars
6 Ratings

5 Customer Reviews



Rated 1 out of 5 stars
By Daniel on Jun 28, 2020

Did not work

I was starting my first saltwater aquarium. This was the cheapest hydrometer I could find so I bought it. I mixed water and measured the salinity and measured really

I was starting my first saltwater aquarium. This was the cheapest hydrometer I could find so I bought it. I mixed water and measured the salinity and measured really high. Got another from my friend from instant ocean and measured at 1.022. Very inaccurate. Yes I tapped it for bubbles and was on a level surface. Would not recommend.


Rated 2 out of 5 stars
By HKfshkpr1 on Nov 23, 2019

Didn't they even "test" this product? Not easy to use.......

Main issue: the instruction says to "lightly tap" the unit after filling up. But if you did it'd read very high. It takes some hard taps before it'll read properly

Main issue: the instruction says to "lightly tap" the unit after filling up. But if you did it'd read very high. It takes some hard taps before it'll read properly. It's hard to get the same reading consecutively that's why I wouldn't trust it until I get almost the same reading 3 times in a row. Besides, the bottom is not really flat( why not???) it'll sit but not secure.


Rated 1 out of 5 stars
By Susie on Nov 20, 2019

Does not work

Was on sale for $1.79. thankfully. It does not work.

Was on sale for $1.79. thankfully. It does not work.


Rated 5 out of 5 stars
By TimRoehrig on Mar 9, 2019

Fantastic and breath taking

This hydrometer was amaizing. If you have been in the saltwater hobbie you know there are not alot of options when it comes to certain supplies. I was drawn to

This hydrometer was amaizing. If you have been in the saltwater hobbie you know there are not alot of options when it comes to certain supplies. I was drawn to this hydrometer just for the design, the elegance of the curves mixed with the slight straight bottom really intriged me. My excitement was valid as the only thing that exceeded the design, build, and stength of the hydrometer was its performance. The way it directed my thoughts and movements with every ounce of salt i poured into the water was perfection. I with i could measure everything in my life with as much accuracy and enthusiasm. I loved every second and i cannot wait to do a twenty five percent water change when the time comes.


Rated 1 out of 5 stars
By Saltydog83 on Jan 14, 2019

Doesn't work

I placed it in my tank for permanent readings and it's inaccurate. Don't waste your money

I placed it in my tank for permanent readings and it's inaccurate. Don't waste your money