I see a little tip burn on the leaves so I would cut your NPKs back to 3/4 dose of what you are giving now and you want to feed them every third watering. Water, water, feed, repeat. This will prevent the roots from getting excess salt buildup. It is hard to give a specific feed amount since different plants in different environments will require different nutrient levels. Best thing you can do is watch the leaves daily and you will learn how to read what they are telling you they want. Right now the leaf tips say a little less feed please. Good luck!