If it were mine I would prune it a little bit, it's a small plant go easy, before you switch over to bloom nutrients give it a final prune if needed, the way your plant is set up I would go real easy just enough to get some light in there and on your tops, this is up to you, it's a small plant, may be you should wait a bit see if it grows any taller you can allways wait until you switch to bloom nutrients and I usaly do a small prune around day 30, how old is that plant? It's up to you i would wait a bit to see if the plant gets taller since i dont know it's exact age.