I was doing a big gravel vac in my tank tonight and I moved all the decor to vac underneath and when I moved a rock there was a leech under it!! I have no idea how it got there, it was about 1" long streched out. I tried to squish it with the rock I was holding but it escaped. I took every bit of decor out of the tank but couldnt find the little beast anywhere. I vacced all the gravel but it didnt surface again (there is only gravel in 1/2 of the tank, the other half is bare). Will it harm the fish? and how to I catch the blighter?








