as said. It is too fatty. I do feed them 3 times a week and they love it. But as a lot of you guys know, I think it caused the anus protraction to my Jar which took the best of 3 months to recover...
I feed mainly the Hikari food sticks and my Jar is happy and healthy. When he doesn't want to eat I let him go a couple of days without feeding, and BANG! his appetite returns.