| Vermettid snails will do this. This is how they "Fish" for food. Other tube type snails do this as well. Some of them actually have fleshy appendages, while others spin a web of mucous.
Dave
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"Fins to the left...Fins to the Right, I'm going home to play with my reef tonight..."
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Experience in aquaria, 35 years. Experience in marine, 20+ years. Experience in Reef Keeping, 6 years. Always a newbie! |