[Delphinus]

Centropyge's likely do reduce a pod population some. Pretty much anything eats pods really, it's just that mandarins are such ponderous eaters ("Hmmm shall I eat this or not? Hmmmm? Hmmmmm?") that usually if you offer them any prepared foods, that the other tankmates eat up all of it before they get enough of it. Thus, the the need for enough of a live population of pods that the mandarin can work on for other the 23 hours, 55 minutes that you're not there trying to directly feed them. Sometimes you get one that "figures it out" and eats food when offered but that's more an exception than the rule.

Catherine, Mark, I'm glad you trust your sixlines but I'm just posting my experience which in hindsight is a fairly well documented trait with these fish. I too thought "No, my mandarin is a nice fish" ... Lived peacefully with a mandarin for at least a full year after I moved the mandarin in from a different tank that I was taking down. There was no warning or any kind of lead-up to the event, otherwise I could have tried something. Anyhow, forewarned is forearmed. Sixlines are OK fish but they are known to become potentially troublesome as they age.