Salt Level

[fishy55599]

hi, just wondering how much salt i will need to mix with 25l ro water to get it too about 1.025?
first time mixing

 

[KittyKat]

Here is the calculator which I use: http/www.hamzasreef.com/Contents/Calculators/DirectSaltCalculator.php

 

[weezawoo]

If you add a little at a time and keep checking it fishy as some people find different amounts to work for them keep a note and it should be the same next time

Good luck

 

[fishy55599]

but i am gonna need to leave it mixing about 12 hours to mix completely before adding, so really i need to know the amount

 

[fishy55599]

im hoping to get it mixing before 7 so any help much appreciated

 

[Chris_C]

I add about 3 to 4 cup fulls.

 

[seffieuk]

I add about 3 to 4 cup fulls.

+1 usually four cups full - tea cups to get to 1.026 but it does very with salt brands, why I have no idea!

 

[fishy55599]

i dont use cups, i use grams usually

 

[fishy55599]

ill go read the box again and see how it goes. i hope it goes right

 

[StandbySetting]

0.85Kg at 25[sup]o[/sup]C.

 

[Chris_C]

ill go read the box again and see how it goes. i hope it goes right

It should say on the salt tub how much to add for 1.025 .. i think mine says add 1kg of salt to 24.9 litres of water.


So just get your scales and a cup or whatever you will put your salt in... weigh the container without salt then add the salt and minus the weight of the container to get the right amount. hope that makes sense

 

[fishy55599]

well it doesnt say on the box

ive read it is about 35g per litre?

 

[StandbySetting]

You can work it out yourself pretty easily, 1.025 Specific Gravity is equal to 34.3 Parts per thousand, so you'll need 34.3 grams per Litre, so just do 34.3*25L which is 858 Grams, then test with your refractometer and add more salt as necessary, make sure you test at 25oC, marine salt contains extra elements such as Mg, Ca etc so you'll need to add slightly more than if you were using pure NaCl.

 

[fishy55599]

sound good what you suggested will try that

 

[Funkoid]

As a rule of thumb so far i've been adding 35g of tropic marin per litre, then adjusting after 12-24 hours of heating at 24c. Got me at a steady 1.025.