I had 1 that stretched, but i got rid of it. I was just asking because the soil was drying out too quick. So what do u guys think a sufficient distance would be for the 400watter? On the other note, I have 2 Cheese and 2 Yumbolt-47 in veg right now under 4, 4ft t-8's that are doing wonderful! I transplanted them on the 31st and they still don't need water. Is that normal?