Algae mainly
they eat algae and dead fish
No, the snail wouldn't eat it because they do not eat other animals, and because he is not fast enough.
From most sources I can see on the internet, they eat plants and algae. Fish eat them.
The 'Pond Snail' Lymnaeidae range from 1cm two 1.5 inches.
actually it has 1 leg and i know that because i looked at a pond snail unde a microscope
snail
They have eyes to breath on
Yes, most pond snails eat elodea, or anachris. However, it usually depends on the species of snail. Land snails do not eat it, and most aquatic ones do.
You're in luck! I have a pet pond snail. (If your wondering, his name is petey). He is about 3.5 inches tall and 4.3 inches long.
Grefc
No
I would say it is a herbivore, because they would probably eat the algae in the pond, but some might be carnivores or omnivores, so your best bet is to just look online.