krill

I feed FD krill to my pbass and sometimes my oscars. Silver dollars and Jurupari's also eat it. They love the Tera krill. But none of my fish will eat any other type/ brand of krill. The smell must be involved. After they have spit it out the first time they will not touch again. Days...

Can feeding these foods too often to a Leopard Cteonopoma cause digestion problems because of the shells? My Leopard Ctenopoma will often spit out krill shells and make a mess even when I break the krill up into bite size pieces. I can't exactly remove the shells on these freeze dried foods...

What would be the better for my Jaguar Cichlid. Freeze dried shrimp or freeze dried krill?