Ok cut that spot out and another chunk that had a couple suspect areas of a greener cast. Eyes peeled for any others showing up. How have I developed Cyanobacteria? Too much BacteAE?

Ok problem solved:) I went to  michaels craft store bought a plastic mesh  for 2.50 and glue gun it to back after I empty tank and pulled out 15+ shrimp from the filter department. Hopefully that solves the problem I turn filter back on. 

Yep, cyanobacteria like Crabby said. Get rid of it as quickly as possible.

I feed my shrimplets powdered foods, that I pre-soak in a small cup of water (so the food sinks) and use a pipette/turkey baster and squirt the food into subwassertang or anywhere shrimplets tend to hide in.   2-3 times a week. 

That looks like blue-green algae, Cyanobacteria. It does quite quickly all across your aquarium and is extremely hard to get out. I recommend taking that piece of hornwort out (or at least trimming that part off), and maybe looking into how to get rid of it if it does start spreading more.