Proberly overwatering as your giving every day , your not letting roots dry and search for food . Give a good watering like budflower says and let water run out the bottom , Take a ph reading of that run off water . Let plants dry out , a better way of testing to see if your plants need a watering/feed is to have a pot the same size as whats your plants are in and fill with soil . Then you can compare the weight difference then you will know when to water