Thanks for the comments.
I don't check the humidity level but it looks like it is always on the low 90/high 80's.
For any fungus or this black slime algae (not sure what this is) issues, I raise the water level by swapping out the pvc pipe when either one of these gets out of control. The slime algae and fungus will float and skimmed to the sump. I'll take a pic of this later. I also have pond snails in there that will eat the algae and give back nutrients to the plants at the same time.
Awesome setup, so you keep you're humidity really high?
Any tips on how to prevent/ rid of bga looking algae in the substrate? I seem to be getting it alot in my set up.