The images appear to be caused from fish, snails or garden gnomes. True deficiency usually results in many small round holes.
If there are plants that appear that way then I agree with Bruce. Add more potassium. In fact, you can safely double that amount. If you see improvement then you can reduce the dosing until you see problems again.
. The trace mix he listed is very close to Plantex. The copper levels listed in my thread are the results of one dose in the tank.