how many cups per gal tropic marin

[glowplug]

I couldnt find a cponversion for it anywhere, or even a suggestion as to how much salt to add per gallon, its my first tropic marin, thanks guys

 

[glowplug]

anybody? id like to get it mixed up tonight

 

[susieq]

Can you use your hydrometer or refractometer to figure out the first batch?

 

[granny]

I use Reef Crystals and Instant Ocean. Both call for1/2 cup of salt per gallon of water.
20 gals takes 10 cups of salt.
Try that, then measure it with your hydrometer or refractometer or whatever you have.