So my buddy took a clone from me. It has rooted fine and began to grow. I learned afterward that the soil he cloned the plant into was the miracle gro fertilizer in the soil type. The plant was transplanted into a larger pot with good soil (but the initial root mass is still in the fertilized soil). Plant began to grow fine for a few weeks, then all the new leaves (and old too) began to get small brown spots on the tips. Then the spots began to move closer to the stem. Now, it has killed all but the top two sets of leaves, and is working on the second set. I flushed the soil for 2 hours the other day, just to get ANY fert out of that soil...to no avail. The spots are speeding up on teh second set of leaves. The plant is also growing slower than it was last week. Grown under 250Watt HPS. What is going on?