The first thing to note, these are not reef safe and should be considered a bad guy in your tank if you keep other snails, oysters or clams.

Bad Guys
Bad Guys

The Crown Conch, also known as Melongena Corona, King Conch, and the Florida Crown Conch, are hardy snails that can tolerate a wide variety of salinity levels, but will not tolerate large temperature swings.

They will spend their time sifting through your sand bed looking for other snails, oysters, and clams to eat, silent assassins. They will keep turning over your sand bed as they move around, keeping it aerated, which is about the only benefit they will bring to your aquarium.

Crown Conch
Crown Conch

Crown conchs are known to feed on dead organisms they encounter and may be cannibalistic, but if you are planning on only keeping this snail, and no other snails, then they would actually be a pretty nice addition to your tank.

These unusual looking snails are interesting to watch with their pretty shell and lurching movements, it is a shame they are not reef safe.

Crown Conch
Crown Conch

Tank Requirements

  • These snails are NOT reef safe.
  • Clean and stable water.
  • Stable magnesium & calcium levels.
  • A reasonably deep sand bed to allow them to sift through for food.
  • They will not tolerate a high nitrate level
  • Recommended stocking level is 1 per tank, they have been known to be cannibalistic.
  • Not to be kept with other snails, oysters or clams.


If your tank is not full of snails you want eaten, you will have to supplement the Crown Conchs diet. This will include:

  • Clams
  • Oysters
  • Snails
  • Leftover meaty foods
  • Unfortunate deceased livestock


These snails take quite a long time to acclimate. They should be drip acclimatised slowly, for roughly double the amount of time you would do for a fish, about an hour and a half.

When placing it in the tank, it is best to place it on sand work rather than the rocks as they prefer to bury themselves in the substrate.

Snails do not acclimate particularly well, so if after a couple of days you notice your snail is not moving you should place it somewhere that you can keep an eye on it, and if after another couple of days it still hasn’t moved, you should consider removing it from the tank.


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