Then they certainly wont be a problem even if you don't like snails so it's a moot point
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DP's are awesome
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Apple snails are very easy to look after, most important things are making sure you pH isnt to acidic (it's OK if it's only around 6.8 or something, but any lower and the enamel on the snails shell will corrode and then the shell will too) and making sure there's no nippy fish that would eat their antennae (I don't recommend keeping them with barbs or large goldfish).
Loaches are a big no-no too, and will destroy apple snails.
Apple snails should be fed properly too, food pelletd for shrimp and crabs are excellent, because of the calcium they contain, they will eat algae, algae wafers and pretty much anything really - they are all round scavengers and will even relish things like bloodworms.
Usually they are very inactive at the lfs, but once happy and acclimatised into an appropriate aquarium they can be very active and fast moving.
But nerites are much better algae eaters for cleaning the glass and broad plant leaves - you can buy them of the net if you cant get them at the LFS.