You should use nutrients every 2 o 3 watering like that : water / feeding / repeat OR water / water / repeat so you don't give nutrients every 2 days but every 2 or 3 waterings. I really advise you to don't based your watering on the number of days but on the weight of the pot , I explain : Lift a pot before watering when the soil is dry d remember the weight , then water the plant and lift the pot after watering and remember the weight NOW what you need to do is to wait until the soil is dry ( light weight ) to water again