Weird pods, worms, and hydroids?

[One Reefing Boi]

Any help on IDs would be great!

harmless hydroids?

Some white thin worm?

These look like pods but are bigger and seem flatter and rounder than my usual ones. They are quick though and kind of scuttle, not really flat worm motion

They seem more like torpedo shaped than the rest of the pods in my tank and are a bit bigger/bulkier for reference, here are what most of my pods look like (typical thin body and antenna eon shape of Y on head)

 

[KING KONG]

Any help on IDs would be great!

harmless hydroids?
View attachment 3146301
View attachment 3146308

Some white thin worm?
View attachment 3146303
View attachment 3146304

These look like pods but are bigger and seem flatter and rounder than my usual ones. They are quick though and kind of scuttle, not really flat worm motion View attachment 3146305View attachment 3146306
They seem more like torpedo shaped than the rest of the pods in my tank and are a bit bigger/bulkier for reference, here are what most of my pods look like (typical thin body and antenna eon shape of Y on head)View attachment 3146307

1) yup hydroids and may be colonial hydroids if they r not disturbing anything, let them be there

2) dorvilleidae worm(good guys )

 

[One Reefing Boi]

1) yup hydroids and may be colonial hydroids if they r not disturbing anything, let them be there

2) dorvilleidae worm(good guys )

Okay, I removed the snail just incase and he is now in a QT tank

cool about the worms, had never seen them before

 

[One Reefing Boi]

Anyone know what the pod looking things are?

 

[EeyoreIsMySpiritAnimal]

Okay, I removed the snail just incase and he is now in a QT tank

cool about the worms, had never seen them before

Ditch the snail -- you DO NOT want colonial hydroids spread throughout your tank!

 

[One Reefing Boi]

Ditch the snail -- you DO NOT want colonial hydroids spread throughout your tank!

He has been banished since last night.

can hydroids retract though? I think I see 2 more on a Frag rack I have but whenever disturbed they shoot into their tube

 

[KING KONG]

He has been banished since last night.

can hydroids retract though? I think I see 2 more on a Frag rack I have but whenever disturbed they shoot into their tube

Actually I hv these hydroids in my aquarium too. They don't disturb anything so I let them be there but many people hv seen them harming corals and fishes.

Once there is colonial hydroids in your tank,there will be more, just like those
dorvilleidae worms(u can say they r relatives of bristleworms). If your tank is new then they may go away on their own.

 

[One Reefing Boi]

Actually I hv these hydroids in my aquarium too. They don't disturb anything so I let them be there but many people hv seen them harming corals and fishes.

Once there is colonial hydroids in your tank,there will be more, just like those
dorvilleidae worms(u can say they r relatives of bristleworms). If your tank is new then they may go away on their own.

Yeah mine don’t bother anything and look more like small feather dusters honestly

 

[EeyoreIsMySpiritAnimal]

Yeah mine don’t bother anything and look more like small feather dusters honestly

There are multiple types of colonial hydroids. Maybe you have the non-invasive kind, but believe me, once you've had a tank overrun with the bad ones, you will take any action needed to prevent them again.

And yes, they can retract.