Ok, maybe I was led to do the wrong thing but I have been dosing the Mixed MAG version of Magnesium Sulfate and Magnesium Chloride. A 1g mix of that is $20. Maybe I dont need the Sulfate for just booting the Magnesium? I may have exaggerated a little bit on the price slightly but using the current discounted sale prices of Instant ocean it doesnt save me much from what I pay for the salt that has the parameters I want.
| | cost | gallons made | | $/G |
| Local | Fritz 200 | 64 | 175 | | $ 0.366 |
| Petco Sale | Instant ocean 160 | 38 | 140 | 7 | $ 0.321 |
| Petco Sale | Instant ocean 200 | 57.31 | 170 | 8.5 | $ 0.387 |
Obviously if the sulfates arent necessary then the price changes by $0.04 per gallon or so down.
Using BRS's how much salt does a bucket actually make, adding in the cost of boostin magnesium with the 2 part its pretty comparable. I think its best to use the salt thats closest to your parameters to save on time as well as potential issues if you have to do large water changes. Also instant ocean is known to mix a dirty, which I dont like cleaning out my mixing station often.
There are some very expensive salts that have very close parameters to Instant ocean and I dont know why you would choose them over IO.