Shrimp is in QT tank with 1 sponge coral.
Worried if shrimp play or investigate the snail it will fire it's venom spear at the shrimp and kill it. Not sure if the snail is a threat to cleaner shrimp?
I've been reading about them, can't see if shrimp are on the diet.
The one that I have seems to prefer eating snails. How far is a shrimp from a snail when a cone gets hungry?
Diet and FeedingCone snails are divided into three groups according to their diets:
- piscivores - fish eaters,
- molluscivores - mollusk/snail eaters, and
- vermivores - worm eaters
The radula of these snails vary both by species and diet specialization. Piscivore radula are elongated with a long smooth shaft tipped in long curved barbs. Molluscivore radulas have heavy barbs near the base and are serrated over most of the length of the shaft. Vermivore radula are short, broad, and strongly serrated with strong barbs near the middle.
When catching prey, cone snails first scent it with chemoreceptive cells on the proboscis, gently touch it with the proboscis, and then, lightning fast, sting the prey with the radula, (which is attached by a thread), and inject the venom. Within seconds, the prey is immobilized. The thread is then retracted and the prey engulfed through the expanded proboscis and moved to the stomach to be digested.
ReproductionAlthough reproduction in cone snails has not been widely studied, it appears that most of these snails have separate sexes and fertilization is internal. Egg capsules of various shapes are laid and attached to substrate. Each capsule contains a varying number of eggs. Two types of hatchlings have been described, the veligers (free-swimming larvae) and veliconcha (basically baby snails).
BehaviorMost cone snails are normally active at night; however, some species hunt at dusk and dawn.
AdaptationThese slow-moving snails evolved into one of the fastest known hunters in the animal kingdom in their efforts to catch prey. Their average attack lasts only milliseconds. They use stealth and deliver paralyzing venom using stinging harpoons. Cone snail venom is very complicated chemically, varying widely in its makeup from species to species, whether a piscovore, the most toxic, or a vermivore, the least toxic; and with each individual sting or attack.
Cone snails are mong the most toxic creatures on earth. Over 30 cases of envenomation have been documented worldwide with some fatalities. The venom, which has hundreds of active components, inhibits transmission of neuromuscular signals in the body, initially causing numbing and/or tingling at the site, which spreads to the affected limb, then to the whole body.