Need Help Diagnosing Leaf issues

[Ted SA]

Need help diagnosing the problems with the leaves and solutions. First time grower.
 

 
Looks like something eating on the one below but I can't see anything
 

 
Edges of the leaves turning black
 

 
Brown patches
 

 

[geeme]

Looks like you're using fertilizer too soon. Is that potting soil and with fertilizer built in? Even if you're not adding ferts, the stuff in the package may be too strong for plants as young as yours. If it's not built-in, flush well with water then let drain thoroughly for the next couple of waterings. When you do return to using fertilizer, only use about 1/8 tsp per gallon to start with, and don't use it every watering. Slowly work your way up, and don't go full-strength if you're going to use it every watering, even once the plants are mature. Only use full strength (usually 1 tsp per gallon) if you are going to alternate plain water and fertilizing water every 3rd or 2nd watering. 
 
If you're not adding ferts and that's happening from the potting mix, I'd recommend switching to something else for a while. 

 

[Ted SA]

• Thanks for the advice. I have used fertilizer. Haven't used it since transplanting. I will be careful and wait before using again and then really reduced amount. Potting soil is Happy Frog.