Hydrometer differences

jbirdy

jbirdy

Member
I have been using the SeaTest since I got my tank. About a week ago, I purchased a new hydrometer by Living Sea. Well, I decided to see the accuracy of these two tests one day and there is a difference by 0.006. :confused: The SeaTest hydrometer read 1.026 and the Living Sea hydrometer read 1.020. Which do I follow? Do you know which is more accurate? Please help!!! :D
The SeaTest one is two months old, does age have anything to do with it? How often should we buy a new hydometer to test for salinity.
Thanks for the help. :)
 
03

03

Member
well i have noticed that if you let the seatest hydro sit with water in it for 5 min b-4 you take a reading it is different then if you just dip it and read !!so that is what i do.
 
fender

fender

Active Member
Also make sure there are NO bubbles at all on the arm. NONE. Even a tiny one throws the Sea Test off.
 
oceanblue

oceanblue

Member
make sure you read the instructions on those, most of them are calibrated to one temperature or another. If you want a chart to figure the difference in measurement at a given temp, go look on the FINS resource. they have it spelled out real nice. good luck!
 
lu

lu

Member
From what I have read, you're best bet would be to get a refractometer for reading your salinity. I automatically calibrates for temp too. They are a bit pricey but if you get one, you'll never have to wonder if your getting a correct reading or not. I have found them on ---- selling in the range for 60.00 to 90.00 new and used. I guess they retail for 150.00 to 200.00. You'll also need one of these babies if you ever have to do a hyposalinity on your fish. You want to be VERY accurate when doing hyposalinity. Hope this helps!?!?
Sharks......
Is this totally correct? Have I done my homework?? LOL
 
You must log in or register to reply here.
Top