What are these creatures?

[Reef Devils]

I have some interesting creatures in my tank and looking for and ID on them.

Picture 1 - it was night time and came to check on the tank. I saw these 2 worm things crawling on the glass. Are they good guys?

Picture 2 - not sure if this is aiptasia or a feather duster. The in in the pick does not come out of a white tube but I have some that come out of a white tube.

Picture 3 - I have had a lot of these white things attaching to the back wall of my aquarium and some on the glass. Are they filter feeders?

Picture 4 - I have found a bunch of these things in my sump. They are like white fuzzy balls attached to the glass. Good?

Let me know if they are good or bad.

Thanks

 

[themcnertney]

Reef Tank Hitchhiker ID · Saltwateraquarist.com

Some reef tank hitchhikers are good, while others are bad or neither. Here is a reef tank hitchhiker ID list for the most common hitchhikers.

saltwateraquarist.com

 

[F i s h y]

1 some kind of detritus worm, most likely a good guy.
2 aptasia remove if you can
3 if they move likely amphipods of some kind if they don't its probably a type of non motile snail
4 pineapple sponge

 

[Steven Garland]

1st pic- no eartly idea what I am even looking for.

2nd pic-aiptasia try and cover all of it with super glue.

3rd pic- little feather duster worms,every tank has them.

4th pic- a pineapple sponge,I think.

 

[ISpeakForTheSeas]

1 - some sort of polychaete worm; I see cephalic tentacles (tentacles on the heads) on them but I can't count how many. I'd guess Dorvilleid worms, but knowing how many tentacles they have would help.

2 - "Aiptasia" (a pest nem); though there is a feather duster worm tube down and to the left of it.

3 - Probably Spirorbid worms; harmless filter feeders (and a type of feather duster worm) - you should be able to just scrape them off the glass if you don't want them.

4 - Pineapple sponges; harmless filter feeders.

 

[Reef Devils]

1 some kind of detritus worm, most likely a good guy.
2 aptasia remove if you can
3 if they move likely amphipods of some kind if they don't its probably a type of non motile snail
4 pineapple sponge

What is best way to remove aptasia can I just pull it off?

The things on the back wall don’t move.

Is pineapple sponge good

 

[Reefkeepers Archive]

1 bristleworms
2 aptasia
3 copepods (probably)
4 pineapple sponge

 

[Reef Devils]

1 - some sort of polychaete worm; I see cephalic tentacles (tentacles on the heads) on them but I can't count how many. I'd guess Dorvilleid worms, but knowing how many tentacles they have would help.

2 - "Aiptasia" (a pest nem); though there is a feather duster worm tube down and to the left of it.

3 - Probably Spirorbid worms; harmless filter feeders (and a type of feather duster worm) - you should be able to just scrape them off the glass if you don't want them.

4 - Pineapple sponges; harmless filter feeders.

I am not sure how many tentacles they had. Hopefully they are good to have.

The white tube was a different one that was a feather duster.

Yes I just looked up Spirorbid worms and that is what they are.

 

[Reef Devils]

1 bristleworms
2 aptasia
3 copepods (probably)
4 pineapple sponge

I think pic 3 is Spirorbid worms

 

[Reefkeepers Archive]

What is best way to remove aptasia can I just pull it off?

The things on the back wall don’t move.

Is pineapple sponge good

Things on the back wall are tube worms if they don't move. Harmless filter feeders, same with the pineapple sponge. You cannot pull off the aiptasia, they can regrow their entire bodies from just a single cell and can spread from that. Inject it with lemon juice.


EDIT: Yes, spirobid worms

 

[Reef Devils]

Things on the back wall are tube worms if they don't move. Harmless filter feeders, same with the pineapple sponge. You cannot pull off the aiptasia, they can regrow their entire bodies from just a single cell and can spread from that. Inject it with lemon juice.

They aiptasia is on a rock with a bunch of zoas. Should I pull it out of the water and spray them. Lemon juice is ok if it gets in the tank?

 

[Reefkeepers Archive]

They aiptasia is on a rock with a bunch of zoas. Should I pull it out of the water and spray them. Lemon juice is ok if it gets in the tank?

Do. Don't spray it. Get a syringe and a needle to inject it. Don't get it in the tank or on the coral