How much salt to make 35ppt

[Spare time]

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

Not for reef crystals. I think it makes 0.78 gallons per half cup fpor 35ppt. Half a cup per a gallons I believe makes it at 1.021

 

[DDenny]

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 ;)

I didn’t say your answer wasn’t sound. And yes most people don’t keep a scale but I am one of those that does. Even with a scale the weights change due to moisture I also mix mine a little high and add RODI to bring it down so I don’t have additional mixing time cause of having adding salt.

 

[Doctorgori]

IME about 3 cups of reef crystals makes a 5gal bucket ...
IO at 1/2 cup gallon makes like 31ppt

 

[lordraptor1]

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

well i dont pay a lot of cash on my gear im running chinese pumps, wavemakers, and led lighting, my tank was used, my skimmer was used. in fact the only thing i can say was new is substrate and sump LOL and i dont know where you are finding a scale for $20 but there is only one place around here that sells scales and they are always sold out of scales under $35 and for me i wont spend the extra $15 and ordering online isnt worth it factoring in shipping and most places now charging tax for online orders.