Dec 13, 2025 #1 M mark765 New Member View Badges R2R App User Joined Nov 15, 2025 Messages 13 Reaction score 0 Location ireland Rating - 0% 0 0 0 Hi, I’ve a new hitchhiker in my tank, can anyone id it? It was on the glass when the lights were off, but quickly moved across the sand to hide in the rock when lights went on.
Hi, I’ve a new hitchhiker in my tank, can anyone id it? It was on the glass when the lights were off, but quickly moved across the sand to hide in the rock when lights went on.
Dec 13, 2025 #2 steveschuerger Avowed Goni freak View Badges Reef Tank 365 R2R App User Hospitality Award My Tank Thread Joined Dec 11, 2021 Messages 24,630 Reaction score 60,034 Location West Metro Boston Rating - 0% 0 0 0 Looks like a nudibranch but I couldn’t tell you what species
Jan 4, 2026 #3 rayadog Valuable Member View Badges R2R App User Catskill Reef Member EPRA Member My Tank Thread Joined Feb 9, 2025 Messages 1,152 Reaction score 1,076 Location PA Rating - 0% 0 0 0 It looks similar to any number of leopard flatworms. One similar example: Pseudobiceros pardalis
Jan 4, 2026 #4 rayadog Valuable Member View Badges R2R App User Catskill Reef Member EPRA Member My Tank Thread Joined Feb 9, 2025 Messages 1,152 Reaction score 1,076 Location PA Rating - 0% 0 0 0 But I agree it is also similar to spotted nudibranchs. I think a worm more likely to dart from light? Idk. Could throw a chunk of clam in to see if it is a carnivore
But I agree it is also similar to spotted nudibranchs. I think a worm more likely to dart from light? Idk. Could throw a chunk of clam in to see if it is a carnivore
