Should I be concerned with these leaves turning yellow and brown?

[onTheGreenMountain]

Do you continue to use Tiger Bloom and add something with a higher p-k?

No. I replace the Tiger Bloom with something higher p-k. Anything organic will usually be ok. The one I have right now is a 2-15-15

edit: its for later flower though, not early or pre flower

 

[Edinburg]

I use ocean forest and have good luck with Atami Bloombastic.