Hi joerdie,
Welcome to the board.
If you are interested in keeping your current sump setup, and adding a very inexpensive refugium to your 200 reef tank - let me know.
All depends on if you are into DIY projects or not, and what sort of outcome you are looking for.
You can keep your flowrate up high for your tank, and steal a little flow from the return line to go to an under tank refugium - if you have room under your stand of course.
Let me know - be glad to help you plan it out and discuss if you want.
See ya