Hydra vulgaris

Hydra vulgaris: Freshwater polyps (hydra vulgaris) — Nikon D200, Nikkor AF-S VR Micro 105mm, 2 x Sea&Sea YS-110α, Lake Zug, Fischchratte, 26. Mai 2013. Nikon D200, 1/250 s, F/29.0, 105 mm, ISO 100, Sunday, May 26, 2013 09:52:02