The only way that it has worked for me was by feeding pellets exclusively. You may add a variety of pellets if that is how you feed your fish. But I wouldn't feed any live food at all, not even as treats until your Trimac readily accepts pellets. If it goes on too long without the Trimac eating, then you may have to feed it whatever it will eat before it falls ill. I doubt it will last that long though.
cheers buddy, il stick to the pellets and hope it works out