Gravity Meter

[flyguy503]

I've been gathering info about starting a new aquarium for a few days now and one of the things i have to get is a gravity meter... i have no idea what it is and what it's for and what's the best one to get! can someone help me out?

 

[drty811]

i use a marineland deep six, cheap but does the job. it measures the specific gravity of the water, salinity of the water....how much salt is in the water.HTH

 

[leecrosby]

i have deep six and aquarium sys seatest both are very good

 

[EDGRAY]

mmmm deep six is not accurate but you can give it a try but i like more the refractometers and there are some cheap ones for $50 but even better a digi lab the one that steve use measures gravity, temperature & ph all at once and is $100 a great deal....

 

[reefman23]

These are referred to as Hydrometers. They are good at getting a ballpark range, however the refractometers are much more accurate. I have seen refractometers as cheap as $40.

HTH,

Jesse

 

[sadielynn]

While refractometers are the most accurate if you tip them just a bit that can skew the readings ... I spoke to a mfg about thes he said that if you are not stedy in your holding of them your reading can be off . Ed the thing that Dragon uses only measures spg and salinity only not ph :mrgreen:

 

[skipm]

Here are a few examples of different tools used to measure salinity:
Glass hydrometer- http://www.drsfostersmith.com/Product/P ... 004+113761
Swing arm hydrometer- http://www.drsfostersmith.com/Product/P ... 004+113761 and http://www.drsfostersmith.com/Product/P ... 004+113761
Refractometers- http://www.drsfostersmith.com/Product/P ... 004+113761 and http://www.drsfostersmith.com/Product/P ... 004+113761
The DigiLab- http://www.premiumaquatics.com/Merchant ... Hydrometer
Electronic Monitor- http://www.premiumaquatics.com/Merchant ... Hydrometer
I also found this one that is an improvement on the traditional glass hydrometer that is not too expensive and said to be very accurate- http://www.premiumaquatics.com/Merchant ... Hydrometer

As you can see there are alot of choices and these are just some of the available models. I have used all of them except the improved glass one in the last link. I currently use a DigiLab and am very satisfied with it. I recommend getting the most accurate hydrometer you can afford, it can contribute to your success or failure in keeping a reeftank.

 

[EDGRAY]

Ed the thing that Dragon uses only measures spg and salinity only not ph :mrgreen:

yeah you're right i was thinking in other one sorry about that i get confuse with alot of info. in my brain i need to change my processor and maybe a better hardrive :lol: :lol:

 

[flyguy503]

Geeze those things are expensive!?!?! :shock: