Planaria harm shrimp by eating eggs, shrimplets and even adult shrimp. Pond snails create extra waste when they eat and when they die. Scuds might harm smaller tanks mates like fry and shrimplets.Recently, I’ve seen a lot of posts on YouTube and other platforms about how to get rid of things such as planarias pond snails, scuds, you name it. So why are these creatures hated? Are they destructive to the tank or is it just a aesthetic thing(The look of a bunch of snails crawling by everywhere).