Tigertails look cool. I was also thinking of the yellow one on that page, it doesn't look huge: Colochirus robustusI have several tigertails in my tank and I think they are pretty cool.
Seems like detrivores would be better. How big do the tigertails get?Colochirus robustus cucumbers are very cool. They are planktivores instead of detritivores like the tigertails. Although they will eat suspended detritus.The ones I've seen in stores were only an inch or so. Not sure what their max size is.