zany zucchini part 2

I'm totally bummed about this zucchini business. I started with two plants. One completely shriveled up and died (turned yellow first) and then the second one started to get yellowing leaves. I started cutting them off and I stopped watering as much. But still my zucchini continue to turn yellow at the ends like the photo that I took today. So I did some research about it and it turns out that since I'm growing in containers, that my veggies may not be getting all the nutrients that they need. I made a mixture of miracle grow and tried it out. Stay tuned....