Feather Duster???

[Rmichael]

Is this a group of small feather dusters on my frog spawn?

 

[KING KONG]

Is this a group of small feather dusters on my frog spawn?

Not sure and can't see clearly in my phone but can be a vermetid snail too. Wait for expert's advice

 

[Rmichael]

Bump

 

[vetteguy53081]

Is this a group of small feather dusters on my frog spawn?

Its a tube worm which emits a fan to capture food. While harmless I dont desire them in my tank and usually crush the tube or scrape off in a container of tank water

 

[EeyoreIsMySpiritAnimal]

If you're referring to the things I've marked with arrows, then yes, they were likely created by fan/feather duster worms. However, they may not longer contain any worms - the tubes will remain after the animal has died.
Did you dip the coral for pests? If so, they are likely no longer living.