How much salt to make 35ppt

[smcquary]

Anyone know how much reef crystals I would need to make 4 gallons of 35ppt? I think it is about 1.2 pounds but not sure of exact measurement. Thanks!

 

[lapin]

1

Anyone know how much reef crystals I would need to make 4 gallons of 35ppt? I think it is about 1.2 pounds but not sure of exact measurement. Thanks!

(1.12) this will get you close. .28 makes 1 gallon

 

[smcquary]

Thanks!

 

[Flippers4pups]

Half a cup usually makes a gallon with most salt mixes.

 

[dbl]

Half a cup usually makes a gallon with most salt mixes.

Beat me to it!!!

 

[Mr.Rocc]

2 cups at around 78 degrees.

 

[smiley28]

I use 1/2 cup of salt per gallon to hit 35 ppt

 

[Ferrell]

I use 3 cups per 5 gallons at 78°. HW Marinemix Reefer

 

[smiley28]

Ah wanted to edit my post I’m using reef excel by tunze

 

[Randy Holmes-Farley Verified Community Expert]

I just pour in a bunch of salt, and add water, measure conductivity, and adjust as needed.

 

[Dburr1014]

I just pour in a bunch of salt, and add water, measure conductivity, and adjust as needed.

So scientific!

 

[billw]

I just pour in a bunch of salt, and add water, measure conductivity, and adjust as needed.

SWAG and tweak!

 

[Sierra_Bravo]

Here's a great calculator to help you dial in:

https://www.hamzasreef.com/Contents/Calculators/DirectSaltCalculator.php

 

[Martin Kuhn]

Easy to use estimation of the amount of salt mixture to use was one of the first things I integrated into my reefer software /tool AquaCalculator

Data included are for nearly every available salt mixture.
data independently measured with calibrated equipment over years.


http://www.mathgame.de/Aqua/SetupACalc.exe

 

[MartinWaite]

38.2 grams per litre if using Red Sea Coral salt.

 

[Martin Kuhn]

Most salt mixes require about 39..40 g added to 1 Liter of RODI to mix to 35 psu.
This seems quite a lot, but you will notice this is realistic.

According my measurements / need amounts for 34,8 psu
( * 35,0 / 34,8 will tell you the amount needed for 35 psu)
Reef crystals: 40,8 g/1 Liter
RedSea - Salt: 37,9 g/1 Liter ... as this salt mixture seems to use anyhdrous components
RedSea - Salt: 38,8 g/1 Liter ... as this salt mixture seems to use anyhdrous components

mixing 4 gal RODI to 35 ppt with "Reef crystals" it should behave like this
(Screenshot AquaCalculator):

 

[lordraptor1]

Anyone know how much reef crystals I would need to make 4 gallons of 35ppt? I think it is about 1.2 pounds but not sure of exact measurement. Thanks!

cant say for reef crystals but for fritz rpm it is 2 and a half cups per 5 gallons for 35ppt/1.026 ( just made 150 gallons of saltwater and used 72 cups to =/- to get 1.026 on my refractometer). would be nice if fritz would have a chart or something their instructions as on box suck balls basically might as well add salt and test with hydrometer or refractometer till you get desired salinity.

 

[DDenny]

cant say for reef crystals but for fritz rpm it is 2 and a half cups per 5 gallons for 35ppt/1.026 ( just made 150 gallons of saltwater and used 72 cups to =/- to get 1.026 on my refractometer). would be nice if fritz would have a chart or something their instructions as on box suck balls basically might as well add salt and test with hydrometer or refractometer till you get desired salinity.

on their website they have a calculator for 1 gallon of water it take 0.314 pounds of salt to get 1.026 or 35ppt salinity.

 

[lordraptor1]

on their website they have a calculator for 1 gallon of water it take 0.314 pounds of salt to get 1.026 or 35ppt salinity.

but people are asking about cups because most people dont keep a scale to measure salt LOL. so my answer is sound, 2.5 cups per 5 gallons to get 1.026 or 35ppt

 

[Jedi1199]

but people are asking about cups because most people dont keep a scale to measure salt LOL. so my answer is sound, 2.5 cups per 5 gallons to get 1.026 or 35ppt

For all of the money people here throw around on equipment, a $20 digital scale is a small price to pay. Most accurate way to measure any ingredients, be it salt for our tanks, or flour for a cake.

For instant Ocean Reef Crystals. 135 grams to 1 gallon.