I guess I'll have to because I'm still at a loss for what to do with the java fern, haha. Those three-ish roots in the picture aren't really long enough to stick in the substrate. And like that whole black mass is kind of...hard and rough to the touch so I'm not really sure what's going on there. It seems just fine floating in the back of the tank though, so that's where it'll stay until I find a rock or something to tie it to.
The anubias is going in the "low light" corner of my tank though. I can't get anything else to grow there because the floaters block out too much light so why not?