Some of the most interesting critters you have found?

Found a mantis shrimp hitchhiker in my tank once. Its vibrant colors and incredibly fast, powerful strike to hunt prey were astonishing.

Found a peanut worm hiding in my live rock—didn’t spot it for weeks. Super cool to watch it extend and retract like a telescoping tube, and great at cleaning detritus from tight spaces. Definitely didn’t expect to get one as a hitchhiker!

One of the most captivating invertebrate encounters in my aquarium was with a Stomatella snail, a subtle hitchhiker whose presence I initially mistook for an odd, algae-covered fragment. Unlike the more familiar turbo snails or nassarius, Stomatellas possess an elongated shell that seems almost too fragile, giving them an ethereal quality as they glide silently along the rockwork. Their movement is almost poetic—an undulating ribbon of foot tracing slow, purposeful paths across coralline-encrusted surfaces.

Their nocturnal habits add to the intrigue, often revealing themselves under moonlight or when the tank’s ambient activity quiets. Equally fascinating is their ability to autotomize, shedding a portion of their mantle as a defense—a fleeting, almost mythic disappearance act before your eyes.

What distinguishes the Stomatella, however, isn’t just their form or behaviors, but their incredible efficiency as algae grazers. They reach crevices and under-hangs with a delicate determination, polishing the substrate in a way that larger snails cannot. In a community where flashier invertebrates like pistol shrimps or fireworms steal the spotlight, the Stomatella’s understated elegance becomes a testament to the subtle complexity and unexpected beauty hidden within every corner of a marine ecosystem.