Den phal with new growth

[AngelinaMaria]

So today while watering my orchids I noticed this new little nub growing on my den phal hybrid. In the past couple weeks I've noticed all my orchids have been growing new leafs. This is my only non-phalenopsis orchid and recently just finished blooming and the spike started turning yellow from the top so it cut it. Is there any tips on what I should be looking for or doing special? Thanks in advance. Oh and I had just watered it in the pic that's why the lava rock looks so shiny :-)