This is one of the problems with most ferts - they don't really tell you how often to use the product. I think you've given too much fert. You don't say exactly how much you're giving and how much soil there in, etc., but I'm guessing that from the appearance and what you write, that you've given too much fert. Watering alot to the point where the soil is always wet tends to be frowned on, because you want the soil to dry out some. This allows air to get in the soil, which is good for roots. I guess people think they can follow a "feeding schedule" with success but I really don't think it works that way. Seems like most schedules will screw things up. Just rinse the soil pretty good with water and let it dry out some. I'm not sure what else to tell you as you didn't give alot of details, but I suspect step one is to cut back on the food.