Fertilizer/Calcium/Magnesium

[Zeus123]

Hello All!

First post here!

Intro-Present: This is my 1st year growing tomato's (normally grow 40 peppers) and I have 10 all in containers. Containers are 10 gallon for the determinate's (3) and 18 gallon for the indeterminate's (7). My soil ph looks in line as per recommendations and I have been feeding them regularly with fox farm grow big. They all have some 10-10-10 pellets mixed into the soil prior to planting and I have also treated the soil with a bit of lime and bone meal.

Questions:
1) Obviously the fox farm has become too expensive (just wanted to give them a light nutrient in the beginning) and I'm now looking into a more cost effective water soluble fertilizer for the remainder of the season. Is there something you would recommend?

2) I've read a bit into bumping up the calcium and magnesium to support health and prevent disease. Is there a product that you would recommend adding along with the weekly fertilizer? I saw 'Botanicare Cal Mag', but I'm worried this will also become expensive in the long run.

Appreciate the feedback!

Thanks!

Zeus