Nutrient deficiency / excess in Citrus
I'm new to container gardening and citrus plants. I repotted the plant after I got it from the nursery a month ago as they suggested, and I've noticed some new growth.
The growth however seems to be a different color than the rest of the plant, with a red / purple tint (circled in the image)
* With respect to the reddish leaves: Is this an indication of nutrient deficiency / excess?
* With respect to the strange growth: Is this a pest or insect I need to eliminate? It looks like the plant but is different that the other new growth.