The table below was recorded in February of 2019 and is representative of salt mix costs at that time. The cost per month model is defined by 10% weekly water changes in a 100 gallon tank which equates to 40 gallons of saltwater per month.

  • The total gallons of saltwater a container of salt mix will yield is dependant upon the exact salinity your mixing too.
  • The difference in cost between the most affordable and most expensive salt mix is negligable, only $7 per month. 
  • Is cost the most important factor when choosing a salt ?
    • Choose salt that most closely matches your desired tank parameters
    • Necessary mixing time varies between various salt mix brands - as long as 24+ hours in some cases. 
    • Are you storing the saltwater or using it right away? 

 

Salt Mix Total material weight Total Gallons @ 35 ppt Cost Cost Per Gallon Cost per month - 100 gallon tank
Instant Ocean 22.3 kg / 49.1 lbs 139.5 gal $54.99 $0.39 / gal $15.60
Reef Crystals 20.2 kg / 44.5 lbs 125.8 gal $62.99 $0.50 / gal $20.00
Hw Marinemix 19.5 kg / 42.9 lbs 129.3 gal $69.99 $0.54 / gal $21.60
Red Sea Blue Bucket 22.2 kg / 48.9 lbs 149.2 gal $72.99 $0.49 / gal $19.60
Red Sea Coral Pro 22.1 kg / 48.7 lbs 149.9 gal $72.99 $0.49 / gal $19.60
Brightwell NeoMarine 20.2 kg / 44.3 lbs 150.1 gal $73.99 $0.49 / gal $19.60
Tropic Marin Classic 25.0 kg / 55.1 lbs 170.7 gal $83.72 $0.49 / gal $19.60
Tropic Marin Pro Reef 25.0 kg / 55.1 lbs 170.7 gal $95.37 $0.55 / gal $22.00