Hi!
I inherited a snail tank a few months ago that has been doing well and I’ve been slowly adding to it (plants a few weeks ago, and was going to add some cherry shrimp this week), but just noticed these little guys swarming along the waterline. They move pretty quickly in little jumps/skips and I’m trying to determine what they are and whether they will be harmful to my snails and shrimp. I would really appreciate an opinion besides my own as I am very new to this. Thanks!
(The photo is a little blurry, the camera kept trying to focus on the snails and plants.)