These are are my Western Tubenose gobies or Proterorhinus semilunaris. There are still tiny, they should double in size soon. Freshly caught from The Dnester River. I've read that these freshwater gobies are invasive in North American now. So beware. If you have them in your aquarium, never show it to anyone. Unlike monkey gobies and round gobies, these little guys are very shy, preferring to hide most of the time. Overall, fun fish. Other fish seen in these video are: Amur bitterlings (Rhodeus sericeus), Freshwater Black-striped Pipefish (Syngnathus nigrolineatus), baby Wild Goldfish (Carrassius carrassius).