If you read through IMMEDIATE HELP.... that's the link in huge letters on the right hand side of your screen...... under the medications section there is a log titled "salt". It may be of some use. Or perhaps you could enter salt in the google search bar just under the immediate help tab and you will get numerous hits to previous logs with information.
I do not generaly answer questions because I am to new to this hobbie myself to make informed comments. I have noticed however that there are a few people on here to put a lot of time and effort into their comments and answers to questions asked. These are the same people who created most of the immediate help section. Judging by your previous questions asked, I would almost assume you have not read through the immediate help section. You may want to take the time to do so.
It has an incredible amount of information in it that will be useful to you both now and in the future. People took time out of their day to enter all that information so that people like you and I would have that information readily available to us, the least we could do is read through it.
Good luck with your fish!