Hiya Paintboi! Welcome to MFK! They look like some kind of shrimp goby to me but not one I have run across or can find a picture of. What is your guess?
I have been blinding myself by my own expectations, not a goby but a dragonet, how about either simplespined or more likely arrow dragonet, (Callionymus sagitta or C. simplicicornis)?
Okay, I can't find pictures of these but the only dragonets listed as brackish that are other genus are Eleutherochir operculis, And Synchhiropus altivelus and S. marmoratus.