Red Sea Coral Pro Salt Question

[Reefer08]

s.g. Salinity Calcium Qty of Salt
1.021 30.6 ppt 420 ppm 33.4 g/l 1.4 lb/5 US gal
1.023 32.8 ppt 450 ppm 35.8 g/l1.5 lb/5 US gal
1.025 35.0 ppt 480 ppm 38.2 g/l1.6 lb/5 US gal

Does anyone know how many cups 1.6lbs is? Also whats the alkalinity for this salt mix??

- Is it low in magnesium?

Thanks

 

[jiperalta]

still 1 cup per 2 gals

 

[Reefer08]

Oh is 1 cup per 2 gallons a general rule for all salt mixes?

 

[jiperalta]

not sure, but works for instant ocean and red sea

 

[Reefer08]

alright cool, thanks jiperalta.