Not sure what this is

[H.Greenleaf tank]

Wife found this in the tank. I have no clue what it is. Any help with be grateful. New tank 2 months old at the end of diatom cycle.

 

[H.Greenleaf tank]

Is it brown algae

 

[NeedAReef]

kinda looks like the base of some snail? not sure what that "part" is called

 

[H.Greenleaf tank]

kinda looks like the base of some snail? not sure what that "part" is called

Well thank you. Now I have to tell my wife she might be right lol.