I wouldn't worry about freeze dried food expanding, it gets saturated pretty quick. That said, I don't like freeze dried food for fish because I think it is kinda a mess and woujld rather use pellets or flake.
I have to cut a bunch of tips of this. If someone wants to come by and pick them up and distribute them, then more pepole would have it!
There are AEFW in the tank, which is why fresh cut tips are great. Dip anyway. :D