Saltwater mixing problem

[Andreas' Reef]

I used fritz rpm salt to mix some saltwater. I mixed the amount directed to 5 gallons of water (1/2 a cup of salt). The salinity came out at about 1.132 specific gravity. Is it my hygrometer that has the problem? I mixed it for 3 hours.

 

[Grill]

I used fritz rpm salt to mix some saltwater. I mixed the amount directed to 5 gallons of water (1/2 a cup of salt). The salinity came out at about 1.132 specific gravity. Is it my hygrometer that has the problem? I mixed it for 3 hours.1/2 cup

1/2 cup per 5gal. doesn't sound right. Try this link. Fritz RPM - Reef Pro Mix Complete Marine Salt Click on directions & doses. Hope this helps.

 

[Andreas' Reef]

1/2 cup per 5gal. doesn't sound right. Try this link. Fritz RPM - Reef Pro Mix Complete Marine Salt Click on directions & doses. Hope this helps.

I meant half a cup per gallon, sorry if I communicated incorrectly. I ended up taking out some of the water and replacing it with fresh water. It brought it down to right in between 1.024 and 1.025.

 

[Woodneers]

I also use Fritz and I am going to recommend you go get a cheap digital scale! I have an AWC set up and I can repeatedly mix to exact salinity by weighing 6.32 lbs of salt for 20 gallons marked on a tub I use. That link is usually spot on!

 

[Reefahholic]

@Fritz Aquatics

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[FishGeist]

5.8 pounds of salt to 30 gallons of water for 1.025 to 26