While brown and black planaria do not hunt shrimp, they are more than capable of killing them. You see, planaria move on a slime trail, just like snails. However, unlike snails, the slime that planaria release contains a toxin that is deadly to shrimp.

Will shrimp eat dead planaria?

Since they like to stay where most planaria is, this make them the top target & will never survive any toxic that come into contact. Once dead it will mostly eaten by adult shrimp.

Does no planaria kill shrimp?

Genchem NO-Planaria 50g is a worm remover in aquarium (including planaria and hydra) Benefits: Keep Planaria away with no harming shrimp and plant. Safe and Biodegradable. Control in 72 hours Ingredient: Herb extract *Impact on water quality.