can someone help me identify this problem

i just noticed in the last day that a lot of the new growth out of the top of my plants are turning kind of yellowish and scrunching up a little a could new have tiny brown spots appearing any help to identify or help fix this problem would be much appreciated

Magnesium

Too much too little? I just happen to start giving them cal-mag the last feed and now this is starting.

So if it's a Defficency why would it all of a sudden start right after I started feeding it cal mag?

So I'm correct to say if I'm gonna foliar feed Epsom at 2% dilution I need roughly 2.5 ounces per gallon?

don't foliar feed. put it in the soil

Well my soil was still wet and I wanted to do something quick because it practically happened over night so I foliar fed them already at a little less than 2% dilution and have already seen the plants perk up and get darker green so hopefully it works for the best if it doesn't change things I'll add it to the feed in a day or so .... Thanks for the helps peeps much love

Too much mag can lock out other nutrients.

When i see this at the the top of a plant i think light burn/bleaching. Raise the light before it gets serious.

I don't think it's a light burn because the lights have been higher than I normally have them but I fed them less than 1 teaspoon per gallon today so I'll I'll post pictures in a couple days

I haven't been feeding too much at most 400 ppm every other watering but a few plants are getting small rust spots on the edges of the leafs like a mag deficency I'll post some pictures this would be day 3 after iv noticed

TRy water water feed...instead of every other watering

yeahhh... too much feed...ph might be off too

the use of ppm is really more for hydro growers, not soil so much. ppm is important in hydro because you're using nothing but water, no soil, so the ferts are heavily diluted. In soil, there isn't so much dilution. many soils come with ferts added, so be sure you need to add ferts to soil before doing so. take pics in white light only so we can see colors better. with dying leaf tips, it looks like you have added too much fert as dying leaf tips is the most common sign of over fert. what soil are you using?

Royal gold tupur .... It's shit but it's what I'm provided with so I have to make due .... What are suggestions for soil? When I did it for myself I used botanicare ready gro moisture mix and had no problem

Do you have bugs?

Ya fucking mites they were here when I moved in been trying to get rid of them but the owner won't let me do the necessary things but iv got a handle on them compared to what it was