Yes snails can live in a fish tank, and they can breed.
In a tank? Snails, other fish, frogs.
I would not recommend adding snails to any tank if you intend to have fish.
Snails live on a tank and no you don't have to feed it.it eats of algae
what are you doing with lettuce and snails? and no they will be fine
yes
Yes, snails and fish get on fine but you must count each snail as one inch of fish length to avoid overstocking the tank (fully stocked is one inch of fish not including tail per gallon of tank water).
I have a 10 gallon tank and it holds 3 indian dwarf puffer fish/pea puffers. they love snail cuz they are small enough to suck out the snails. if you have a snail problem i would remove the fish from your tank and put a snail killing chemical in. i have also heard of snail traps you can put in your tank and not have to remove your fish. i would at fast because snails multiply VERY FAST, or you can smash them with your fingers. Also there are such things as ASSASSIN snails that will eat brown snails.
you can put in sea snails and more brightly fish that you cant get with a heater in your tank
Likely either snails or flatworms.
Here's a good webpage that has many methods of snail removal.
Well i have some garden snails as pets and i put them in a fish tank so if you buy a fish tank then you can put them in there thanks for the question! xXx holly