Pop Quiz!!!! SALT TRIVIA

If you add 50 (1/2) cups of instant ocean salt to exactly 50 gallons of water what would be the salinity or specific gravity?

 

Too high.

 

NNNNN wrong answer please try again.

P.S. I really need to know this. That's what the directions say. 1/2 cup per gallon.

 

Usually salt saturates at an s.g. Of around 1.04 or so, but it depends on a lot of factors. I am not sure what the salinity of that is, off the top of my head.

 

Sorry, I read that as 50.5 cups, I think you are saying 25 cups? That would be about 1.025, but measure, it isn't always perfectly consistient.

 

Pretty sure the box says it will mix to 1.022. And that has rougly been my experience. Lets say im making 5 gallons of salt water i usually go 6 (1/2) cups of salt mix to my 5 gallons of ro/di water to make 1.026.

 

I fixed the original question. I am trying to determine how many gallons are in my 55 gallon. I filled it up (guessed shy of 5 gallons) and mixed the salt inside the tank added roughly 25 cups of salt to it and am at around 1.0243. If skurious is correct then I have less than 50 gallons of water because adding water would bring down the SG to 1.022.


P.S.: relax the tank is empty/barebottom and I put a mag5 in there to stir it up last night.

 

Agreed. I'd never use fresh-mixed artificial SW without testing first.

 

You're mixing up measures of volume and mass.

You will need to know the mass of a cup of salt to calculate the specific gravity.

 

@dingo So you are saying depending on how packed the salt is in the measuring cup(1/2) would result in a difference in SG? Makes sense

Assume for a moment you aren't Sheldon from Big Bang Theory and throw an uneducated guess out there.

LOL

If I pretend this really was a pop quiz and I wasn't too lazy to look at the package would everyone believe me? It is on the package.

For the rest of you just seeing this give it a guess without looking at the package. Assuming you use Instant Ocean.