I'm trying to improve my aquarium skills and mixing salt mix and RO water is where I want to learn more. I've always just thrown the water and measured salt mix in a bucket and stirred it until it dissolved. Then I would immediately pour it into the tank. I've heard this isn't the best way to do it. Right now I'm aerating the batch I just mixed up with an air stone. What else is good practice when mixing up water. I've just rehabbed my tank and want to learn the best habits possible. Should I let the water sit? Any help would be greatly appreciated!!