Why are my snails having red poo from eating tomato?

Red poo in snails after consuming tomatoes is likely due to the natural pigments in the fruit, particularly lycopene, which gives tomatoes their red color. Snails have a different digestive process, so the pigments may not be fully broken down. As a result, the color can pass through their system and appear in their waste. This is generally harmless, but if you notice other unusual symptoms, it may be worth consulting a vet.