낚시게랑 고민하다 동게에 글올려요  저희집에 작은 어항이 잇고 거기에 물고기랑 옐로우달팽이를 사놨어요..  근데 어느날부터 까만 달팽이가 점점 늘어나요ㅠㅠ 첨엔 노란달팽이가 알 낳은줄알앗는데 아니더라고여..  이거뭔지 아시는분? 너무 많이 늘어나서 무서울 정도에요ㅠㅠ 몇마리는 버렷는데 계속 생기네요..