Hydrometers

[mary]

After having my mar. tank for 8 yrs, a problem with my trusty hydrometer arose. It had been reading that the salinity was fine and after watching corals, leathers, one by one open their polyps less and less, I took action and found that in testing it with others hydrometers, mine certainly was off, way off. The salinity was too high. Have lowered it gradually . Want to know what brand some of you really can trust. My fish all seemed to be fine, which is confusing. Allready my gorgoniam is opening. Appreciat your info..

 

[lestregus]

a lot of people are using refractometers, they are more expensive, but much more accurate...

 

[mary]

Thank you all for your suggestions. I will search out a refractometer. I have never read about them. For something as important as this I will put out the 50 bucks.

 

[donmgicwon]

Originally posted by waterfaller1
My buddy at the lfs I work at says hydrometers are only good for a year.
Your talking about the plastic ones, right?

 

[bobbravo2]

you can buy something called a salimeter, for 25 bucks, this is a glass type hydrometer, with a pipet, it is actually more accurate, and easier to read than a refractometer.:joy:
I think all you have to do is clean it with ro/di water occasionally and store it in it.
HTH
Bob

 

[mary]

Ahhh. My local fish store just got those in . Thanks!