I've been trying to nurse back a candycane that I got a week or so ago. I've not been able to catch it with it's feeders out. I have tried feeding it small mysis with a pair of tweezers. The mouths open within seconds of the shrimp touching them, but they can't hold onto it. I've only successfully fed one polyp. I've tried targeting them with cyclopeeze to get the feeders out with no luck. I'm having the same problem feeding an small brain that I've got. What am I doing wrong?