Help: Did i over water?

Hi,

I have 4 nice plants growing and beginning to flower! Yeah! BUT, I watered one plant yesterday evening and I checked it this morning and some of the leaves have brown pigment. I think I may have watered too much. You think this is the problem?

How can I get my plant to recover from overwatering?

Thanks in advance for your advice

A tablespoon of epsom salt, sounds almost like a mag. diff, wouldnt hurt to use the salt. Use that amount in a gal. of water everytime you fert, esp if you use MG A pic would help to be for sure.