Identity spike little unidentified balls

[JMG718]

All over bubble trap in back of red sea 250

Purchases used

These are all over in back of tank

 

[hdsoftail1065]

I can't make it out.

#reefsquad

 

[Crabs McJones]

Look like dried out vermedit snail tubes

 

[Flippers4pups]

All over bubble trap in back of red sea 250

Purchases used

These are all over in back of tank

Looks like vermetid snails to me.