I assume you'r just starting up...? Empty Tank...? You need to read the Spec's on you'r salt and mix according to the amount of salt you want...100L Tank...make 100L Salt water...you do that in a seperate container/bucket..in a Nutshell you then test the salinity of you'r salt water...to high, then dilute with RO, a little at a time...to low, then make a small strong batch and add little by little, until you get 1.025..remember all this is in a bucket...depending on the size of Tank..you do the one batch, then pour in Tank and repeat...until you have filled you'r Tank...remember you'r Temp also has an effect on you'r salinity readings...so try to have a Heater in your Bucket when mixing salt...also remember it depends on what salt you are using...I'm on Brightwell and I have to leave my salt for 24 hours before I use it...
I'm sure the guys will give more info..I am assuming that this is the first Salt Mix...I assume there are other ways off filling a Tank you'r size as I'm explaining according to my Nano..but I would say, start adding the salt according to the amount of RO water you already have and get the Salinity right..I would say pumps on as you need to disperse(spelling?) that salt through out you'r Tank..is the LR and Aragonite in already..? If not remember the water will rise when you add them, so don't fill the Tank to much...If I understood incorrectly then let me just fade away..blush...blush..hehe