Help with snail identification

[andreas265]

Hi, when I went to collect my fish from a seller on eBay, he happened to be a coral shop that had closed down, Kingdom of Coral. As he was shutting the tank he let me have a whole load of free snails, mainly two types. I'd love to know what the are. The bigger ones are around 20mm and the smaller ones with the zigzag shell pattern with a long snout are about 10 mm, the small zigzag snails hang off an invisible thread and kind of abseil down from my rock, it looks like they are floating in the middle of tank. The bigger ones with two sort of horns look like some kind of winkle but I have no idea. Please could someone point me in the right direction to identify my two snail types?

Thank you.

Also in the first picture, the snail has a red phallic shape thing growing off its shell.

 

[WheatToast]

1. Looks like a Turbo snail of some sort. These are popular clean up crew that are said to be voracious algae grazers. I have no experience with them and I am not sure if they can right themselves if toppled over.

2. Dove snails (Columbellidae). Rare, highly-variable, hitchhiking snails that can right themselves and are sought after since their small size allows them to graze algae where larger snails cannot. These are also prolific breeders that lay circular egg cases (if you have too many, try selling them to an LFS or other hobbyists, but mine have never become that prolific). I have found that they produce quite a lot of mucus compared to other snails.

3. Vermetid snail. These sessile snails build tube-like shells, so they resemble tube worms. They are pests; they feed by casting a mucus net that can irritate corals and multiply rapidly. Crush the base of the shell (not the end of the tube) with tweezers or glue the opening shut to kill them.

 

[andreas265]

Thank you so much. I did have around 20 eggs in the corners of the tank until the regal tang has pecked them but in the two corners with the powerheads, the eggs have survived. Maybe it's the Dove snails? I'll get the superglue and dab a bit on the tube opening of the Vermetid. Thank you so much for the advice