Salt amounts pls help ASAP

finley · Nov 8, 2023

I have RedSea Coral Pro Salt and am looking to make 10 litres of water, I have my 10 litre RO but how much of the salt do I add to it ?

Coral Your World · Nov 8, 2023

You’ll need to mix in about 1.325 cups to get to a sg of 1.026

finley · Nov 8, 2023

B’s Nano Reef said:
You’ll need to mix in about 1.325 cups to get to a sg of 1.026

How many grams is that ?

Coral Your World · Nov 8, 2023

finley said:
How many grams is that ?

I mix by the cup, so no idea

Mr. Mojo Rising · Nov 8, 2023

Don't you have a salinity tester?

RoanokeReef · Nov 8, 2023

~298.83 grams

finley · Nov 8, 2023

StrainedSky said:
~298.83 grams

️ thank you

dadnjesse · Nov 8, 2023

Make sure you check the salinity before assuming it's correct.

Randy Holmes-Farley · Nov 9, 2023

StrainedSky said:
~298.83 grams

lol

How do you know it is not 298.82 grams? The OP didn't even say what salinity he wanted.

RoanokeReef · Nov 9, 2023

B’s Nano Reef said:
You’ll need to mix in about 1.325 cups to get to a sg of 1.026

finley said:
How many grams is that ?

Randy Holmes-Farley said:
lol

How do you know it is not 298.82 grams? The OP didn't even say what salinity he wanted.

He did

Randy Holmes-Farley · Nov 9, 2023

StrainedSky said:
He did

Most of my comment was sarcasm related to the crazy number of significant figures in your post, but in reality, the OP still has not indicated what salinity he actually wants.

By the way, how did you come up with that number?

Garf · Nov 9, 2023

StrainedSky said:
~298.83 grams

That’s going to be less than 30 ppt which seems a little low.

finley said:
️ thank you

i would base it on 35 Grammes per litre, then test it with a calibrated refractomer, whatever. You may have to add a bit more if you want it to get to say 35 parts per thousand. You can convert grammes to egg cups or similar when you get an idea of how much salt it actually takes.

Randy Holmes-Farley · Nov 9, 2023

Garf said:
That’s going to be less than 30 ppt which seems a little low.

i would base it on 35 Grammes per litre, then test it with a calibrated refractomer, whatever. You may have to add a bit more if you want it to get to say 35 parts per thousand. You can convert grammes to egg cups or similar when you get an idea of how much salt it actually takes.

I forget, how many egg cups in a foot pound?

Garf · Nov 9, 2023

Randy Holmes-Farley said:
I forget, how many egg cups in a foot pound?

Ostrich or chicken?

Randy Holmes-Farley · Nov 9, 2023

Just expanding on GARFS comments, 298.82 grams of any salt mix in 10 liters of RO water produces a very low (unsuitably low) salinity, well below 30 ppt (below 1.0226).