So I got a frag of WWC yellow tips about 3 weeks ago from TSA and when I recieved it it did not have the yellow on the top like it did in the pics. However, the frag was a nice green blue color. It has been basing out well and is starting to grow onto the plug however the tips still are a blueish purple without the yellow. Is it normal for it not to have the yellow until it starts getting outward growth?