Hello to all.
I'm a newbie here.
My problem is my RES don't eat cuttle bone. I never saw my RES took any interest of the bite size cuttle bone that I left floating in the water. After a week, I ground the cuttle bone and spread it on his floating sticks. That's the only way I can make him take the cuttle bone. But it's tiring. Do you have any suggestion on how to make him take the cuttle bone? Thanks in advance.

