Double check my math (calcium chloride)

[Miami Reef]

This is the calcium part. We need to dissolve 500 grams into a gallon container and fill the rest up to with RODI water (it will be less than a gallon of water).

I’m using this vinegar bottle which states 1.32 gallon capacity.

So it looks like I need 660g of calcium chloride which I then fill the rest of the container with RODI water, correct?

Thanks.

 

[DrZoidburg]

.32 of a gallon more than 500. 160 grams.

 

[Miami Reef]

.32 of a gallon more than 500. 160 grams.

160 grams extra…so the answer is 660.

 

[DrZoidburg]

160 grams extra…so the answer is 660.

I see it that way. Actually getting 678.134 grams if you wanted exactly 37,000ppm calcium. Would just make sure you have dihydrate. Also use a way to measure liquid accurately so you don't run into a over/under dose situation.