I have a fairly large fighting conch and I'm concerned he's running out of food. He's wiped the sanded in my 75 clean. I've tried spirulina algae disks and nori, the other snails love it but he doesn't seem interested. Doesn't seem to like any of the algae growing on the glass or rocks, either.
what the heck do these guys eat?

what the heck do these guys eat?



