Started noticing these in my Reef Tank what are they?

AdamR0331 · Apr 20, 2024

What are these Little Critters that are appearing more and more in my tank? Are they a pest or good ? If a pest what if best way to remove them

tbrown · Apr 20, 2024

Those look like little Nassarius snails. Either that or some variety of Whelk.

tzabor10 · Apr 20, 2024

Periscope snails. They are great. You are blessed

tbrown · Apr 20, 2024

Do they go under the sand or stay above the sand?

AdamR0331 · Apr 20, 2024

tbrown said:
Do they go under the sand or stay above the sand?

They kind of do both it seems like

NeedAReef · Apr 20, 2024

under usually until feeding time or night time then out and about, at least in my tank

kevgib67 · Apr 20, 2024

The whelks that are carnivores don’t go under the sand, I think you are good.

EeyoreIsMySpiritAnimal · Apr 20, 2024

kevgib67 said:
The whelks that are carnivores don’t go under the sand, I think you are good.

Whelks do bury themselves sometimes, but safe nassarius don't climb on the rocks...

EeyoreIsMySpiritAnimal · Apr 20, 2024

AdamR0331 said:
What are these Little Critters that are appearing more and more in my tank? Are they a pest or good ? If a pest what if best way to remove them

What cuc have you added? And where did you purchase it from?

AdamR0331 · Apr 20, 2024

EeyoreIsMySpiritAnimal said:
What cuc have you added? And where did you purchase it from?

My local Fish Store and couple snails and crabs ect ect

EeyoreIsMySpiritAnimal · Apr 20, 2024

AdamR0331 said:
My local Fish Store and couple snails and crabs ect ect

The safe nassarius (technically also whelks) that we usually want in our tanks don't generally breed in the tank - at least not very quickly. If you're seeing a lot of these then you *might* have an undesirable species ...