I have the brightwell aquatics koralMD dip and I just realized that you need 1/2 gallon of saltwater for the dip and you’re supposed to add 4 capfuls. I don’t have this much saltwater on hand and won’t until Thursday. Could I do 2 capfuls in 1/4 gallon or 1 capful in 1/8 gallon or would I have to do the 4 capfuls in a 1/2 gallon