Plant issues

[DC634]

Can someone identify the issue with my tank? My plants keep getting greenish spots on the leaves and some edges start to turn brown/black. My nitrates are at 5 ppm and phosphates at 0.25. I do not know what else it could be if not a deficiency on one of those.

 

[Aiken Drum]

How long have you had the plants?

 

[DC634]

I have had this tank set up for 8-9 months now. And these plants came from a different tank I have back when I first started this tank.

fyi:
Light: Beamswork DA FSPEC
CO2: 1.5 bbp