Mixing saltwater?

[rcbc3384]

Hello
Does anyone know exactly how much sea salt is needed in a one gallon container to get to 1.025? And what do you use to get a good measurement?
Thanks
Rick

 

[cyclops]

It all depends on the sea salt you use. I use Oceanic and it is 1 cup for every 2 gallons. I useally mix it 2 days before then use a refractometer to adjust it to get salinity to 1.025. If it is to low I add more salt little by little. What do you have to measure Salinity?

 

[kmhusband]

I use approximately 1/2 cup of salt to 1 gallon of water and check SG with hydrometer.

 

[rcbc3384]

I use a hydrometer. Its ok but the same 1/2 cup of "Instant Ocean" sea salt tends to get me various readings. They're all close but it varies> Any suggestions?

 

[gmidd]

Originally Posted by rcbc3384
I use a hydrometer. Its ok but the same 1/2 cup of "Instant Ocean" sea salt tends to get me various readings. They're all close but it varies> Any suggestions?
I've heard nothing good of Hydrometers, many have complained that they get various readings. I would recommend a Refractometer, you'll pay at least $50 but your readings will be dead on. Considering the importance of the Salinity with SWF this is one piece of equipment I wouldn't penny pinch on.

 

[lion_crazz]

Originally Posted by Gmidd
I've heard nothing good of Hydrometers, many have complained that they get various readings. I would recommend a Refractometer.... Considering the importance of the Salinity with SWF this is one piece of equipment I wouldn't penny pinch on.
I totally agree with this. A refractometer is one piece of equipment no hobbyist should go without. However:
Originally Posted by Gmidd
you'll pay at least $50 but your readings will be dead on.
is not true. SWF.com sells an excellent refractometer for $41.99.
https://www.saltwaterfish.com/

 

[gmidd]

Originally Posted by lion_crazz
SWF.com sells an excellent refractometer for $41.99.
https://www.saltwaterfish.com/
Why didn't you post this earlier? I could have saved 8 dollars

 

[lion_crazz]

Originally Posted by Gmidd
Why didn't you post this earlier? I could have saved 8 dollars

I posted it as soon as the sale began:
https://www.saltwaterfish.com/vb/show...=refractometer

:happyfish

 

[hatessushi]

Lion did post it a week ago and I bought one, it's ssweeeeeet... :cheer:

 

[max loo]

Sorry for interupting the thread.Just a newbie question.What is the best salinity for fishes caught from the sea at 40-50m depth?I am setting up a 180 gal tank for those fish to be and really puzzled about the require salinity.Thanks in advance.

 

[readster]

from what i've learned, most fish are comfortable with a sg between 1.021 - 1.025.