What happened to your feeder exactly?
What feeder do you have?
Are you able to fix it?
I have used a mixture of 400,500,600 in mine and it worked ok.
I also used just the 600 and it appeared to work fine as well.
I just like having the smaller pellets for the BG, and other small fish. The CC can eat anything. I would like to get some AM LM to hand feed just to see how the CC take to it.