i have had aquarium salt in my tank for some time and now i just bought some green scats and i am reading that they should have marine salt not aquarium salt. my tank is 55 gal so should i just do a 50% water change and then start adding marine salt to my tank and do this once a week for a month or two to remove the aquarium salt and replace it with marine salt. i also have a figure 8 puffer, lepoard puffer and a few mollies. the also how many tlbs. should i start off with and where should i end up at. thanks for the help
