Nutrient or calmag burn, tomatoes...help

I have some a couple tomato plants. In whatever soil they came in. I water them when there are dry, with RO water and a little calmag. They seem to burn badly when I add 1/4 strength organic nutrients....or maybe its the cal mag? My Mesical plants love these same nutrients at 3/4 strength. Anyway what do you feed your tomatoes, how, and when?

Miracle grow once a week, as directed in veg. I substitute a small amount of MG bloom booster once they start flowering/fruiting. I mix it with rain water, fwiw. Doesn't burn them.

We have had so much rain, clouds & damp weather here mine got early blight & septoria. Trying Organacide to kill it. I tried removing infected leaves but I had to stop. Damn things still look like a noob's mj plants, no fucking leaves until 1/2 way up.

Crapo, you want organic. Sorry. I'm still moving in that direction, not there yet. Free bump!

What kind of miracle grow in specific? As calmag needed if I use RO water?

I use the MG tomato food & their all purpose flower/bloom food. I've not had to add anything else for the tomatoes. The tomato food is 18-18-21 & has a picture of a tomato on the box. The bloom is 15-30-15 and has a bunch of flowers on it.

I started adding the bloom food after I discovered using the tomato food by itself grew monster plants (8'+) but they never flowered or fruited. Sure looked impressive, though.

If you're using RO you may have to supplement calmag, I've never had to with the toms. Indoor crops I do add calmag, even a bit to rain/tap water. I used to use RO for my indoor but not any more.

Look to get around calmag I use pelletet Gypsum for calcium and Fulvex for Magnesium either seaweed extract or seaweed meal for micro nuts

Assuming they`re not root bound do the leaf edges look burnt? There`s a good chance its potassium deficiency caused by underfeeding. Toms can handle very strong feed strengths (upto an EC of 5) so its very unlikely you`ll burn them with a 1/4 strength feed.

I've grown tomatoes in containers and soil for decades. I use whatever fertilizer I find that is discounted at the end of the year at the box stores and never have a problem with the plants. I do try to plant strains resistant to blight. Don't crowd plants, plenty of room for air flow, keep well watered but not from the top, don't let water/soil splash up on the plants, cage for support.