Mystery Snails

[KrystaK]

So I recently acquired four mystery snails. I was wondering if anyone could tell me about them? So far I have discovered that they enjoy algae wafers and Zuccini as food. 
I've done a little research and learned that they need calcium to help their shells develop, everywhere suggests getting cuddlefish bone (Or something like that.) I was wondering if anyone has tried this? 
I was also wondering if they breed or anything? And any other info about them would be lovely

 

[DerpPH]

cuttlefish bone may foul the water. A little limestone will do.
 
And some species of pomacia(genus of mystery snails) eat plants.

 

[SarahR]

They will do poorly in soft water, which probably affects them more than dietary calcium levels. I've never really liked the cuttlebone in my tanks, but it doesn't seem to hurt anything, I'm just not sure it helps. Crushed coral may also raise mineral levels, but you need to be sure your fish need those conditions.
Mystery snails seem to leave most healthy plants alone, except duckweed- that is like candy to them. Zucchini and algae wafers are fine. They will also eat blanched spinch leaves and dried oak leaves. Most any veg matter is eaten. Hard compressed pelleted foods are frequently high in calcium and easy for the snails to feed on without being outcompeted by the fish. They have huge appetites and grow rapidly. They will leave the tank, so plug any openings. If you have both sexes they will breed. They deposit an egg cluster that looks like a honeycomb above the water line, never under the water. If you leave it they will eventually hatch and drop into the water-how long depends on temperature, humidity,etc. Babies eat the same foods as adults. I believe they can breed once about nickle size or better.