The module that makes the Jebao Apex friendly requires variable speed ports, which the Apex Jr does not have. You will have to get the variable speed module for $100 to enable the linkage adapter to allow the Apex to control the Jebao pump. They don't make a RW-30. Do you mean the RW-15?
My personal advice for now is to keep the Jebao if it's the RW-15, and use the controller that came with it. You should have plenty of flow in a 65 with that pump. If it's the RW-20, it will be too much flow. I have two of the RW-20's in a 220 gallon and keep the max speed on the second setting out of 8 or it's too much. Not sure about the RW-8, the flow may be too little for one in a 65 gallon.
If you are new to the hobby there are better things to spend your money on at this stage than hundreds of extra dollars for the better powerheads.