Yellowing leaves on edges of leaves --pls help--

i understand this is kind of a noobie question, but i just want to make sure i'm right. there are yellowing spots on the edges of some leaves (not many). the whole leaf is green except for these small yellow spots only ont the perimeter of these leaves. im almost positive it's a nute burn of some sort. i have been adding 10-30-20 nutes, gradually increasing strength evey week. i'm up to 3/4 strength now on the nutes. there has been no problem like this until now. that's what stumps me; if i add nutes every other watering, how could it be nute burn? i would like to see what you all have to say. what do u think this could be, and how to fix this small problem before it getss out of hand?

peace

How about a pic and a description of where u are on the grow, soil and such.

well first you have to consider a couple of things; the age of the plant and the concentration of nutes you are giving it. 10-30-20 nutes sounds like a lot. I've been using flora nova and thats like 7-4-2 i think. You may want to give it water for a week or do a flush. And go back to feeding every other watering. One way to tell if you are over nute'ing is to measure the run off. If you don't have a tds meter (to measure PPM) you should get one. Great investment. For a mature plant, you don't want to go over 1200 ppm. Anything more than that in your run off could be a sign that you need to cut back. but how much a plant can handle can vary from strain to strain.

And if its not many leaves, you may not have much to worry about Not all your leaves will be perfect

I have no camera

Soil is FFOF
2 weeks into flowering
6.6 ph water
And I added a tablespoon of Epsom salt. I heard it won't hurt the plant even if it doesn't need it
Temperature outside this week has been low 90's. So it gets plenty of sun

What else would help?

If the plants flowering, cut back on the epsom salt. 10-30-20 isn't a problem. How much water and how often do you water? What size container or ground? If a container I would water twice daily and feed no more than 2 times per week.

5 gallon pot. I water every other day, half a gallon of water

I would add at least 2 gallons when watering, add slowly so it doesn't run off and water before you feed 1 tsp per gallon of water. Good luck to you.