Snail questions

[Umbra]

so, I like snails in my aqyatium and I jave now counted 4 different species. pons snails, bladder snails, ramshorn snails and malaysian trumpets.

I am happy with the ramshorns and the mts snails, but what are the differences in pond snails and bladder snails' diets and adult sizes?

 

[DutchMuch]

Same diets if I am correct, size difference is the bladder snails are small and stay that way for the most part; the pond snails get good sized.