I have 5 gallon swc and need to know when to start using the calcium nitrate " snack " on my tomatoes . I am also using Azomite and would like to know how often I should use it . How much of each should I use and when ?
I suggest you ask your question in the tomato forum. Most of the regulars here do not use azomite or similar additives in container mixes.
Here is a link that might be useful: Tomato forum