A must have for any reefer!!!!!! By JASON on 3/11/2013
JASON would recommend this product to a friend
save time and frustration,forget the floating swing arm type hydrometer,get this ithe first time!!!!!
Great Product By Bradley on 3/9/2013
Bradley would recommend this product to a friend
This is a great tool for the home aquarium. Was using a small needle type meter and found it was a solid 3 to 4 points off. Tested my tank with this little beauty and I was right at 1.026. Glad I didn't add more salt. This tool os so easy to use my wife is willing to check the salinity as it only takes a second.
simple and accurate By Nick on 3/8/2013
Nick would recommend this product to a friend
Simple to calibrate , easy to use and accurate.
Must have By Todd on 3/5/2013
Todd would recommend this product to a friend
Hydrometers are far from accurate and this is a must have for any reefer.
great By Michael on 3/4/2013
Michael would recommend this product to a friend
Simply put great refractometer easy to use easy to read. comes with everything u need for a great price
Hydrometer was way off By Anita on 3/2/2013
Anita would recommend this product to a friend
I just received my refractometer and calibrated to the fluid. Tested my aquarium and about fell over! The salinity was reading 1.015! According to my swing-arm hydrometer, it was 1.023. I only have one coral -a very forgiving star polyp - and my fish have been fine. So I obviously need to bring that salinity up. That POS hydrometer is going in the garbage!
Easy to calibrate and easy to read. By Devin on 3/1/2013
Devin would recommend this product to a friend
Great product, if you want the most accurate salinity results this is the thing to use.
Simple to use - just follow the instructions By Grant on 2/26/2013
Grant would recommend this product to a friend
Well constructed and simple to use. Just make sure you calibrate with the provided solution - there is a large reminder sticker on the box. So far, appears to work exactly as intended.
A MUST PURCHASE By Chris on 2/26/2013
Chris would recommend this product to a friend
I've been reefing for 4 years and always used a cheap plastic hydrometer. I haven't seen great growth in any livestock. Decided to dive into this refractometer. Glad I did. My plastic meter read 1.025. Tried the refractometer and it read 1.030! Made the adjustment and everything is thriving. A must purchase for little cost!
Inexpensive and accurate By Jared on 1/27/2013
Jared would recommend this product to a friend
You can't beat the price and the accuracy of this refractometer. The calibration fluid that is included is an added bonus. The lines are large and easy to read.
Not sure By Testor on 1/24/2013
Testor wouldn't recommend this product to a friend
Printed instructions with ATC unit say to calibrate with RO/DI water. When I do so, the readings on the ATC match the readings I get on a digital Hanna refractometer. However when I test the calibration fluid that came with this unit, it's reading is 1.028.
So do I assume the calibration fluid is off, or trust it, and recalibrate the optical ATC unit, and assume the digital Hanna is off.
I know BRS site says to use calibration fluid to calibrate.
SCIENCE By Kerry on 1/24/2013
Kerry would recommend this product to a friend
Forget your little floaty tool. This couldn't be easier to use or more exact. Every reefer needs one of these!