Red vermetid snail looking things on my frogspawn coral?

[reefo420]

Hey, so i just got this coral from my LFS and it has some red things on it, is it just algae or something else?

fro

 

[vetteguy53081]

Hey, so i just got this coral from my LFS and it has some red things on it, is it just algae or something else?

fro

hydrothermal vents which are red tipped tube worms and do do not survive well if they lack a food source

 

[reefo420]

hydrothermal vents which are red tipped tube worms and do do not survive well if they lack a food source

thank you for the answer, I'm very new to this, are they bad? and what won't survive? the coral or the worms? should I keep them on it?

 

[vetteguy53081]

thank you for the answer, I'm very new to this, are they bad? and what won't survive? the coral or the worms? should I keep them on it?

No, not harmful but can overtake skeleton. You can place frag in a small container of tank water and carefully scrape them off with edge of a paring knife

 

[ISpeakForTheSeas]

Possibly benthic foraminiferans:

If they are completely solid, they are probably benthic foraminifera. These are filter-feeding protozoans and are harmless.

 

[WheatToast]

Do you have images under flashlight? My guess is harmless, filter-feeding benthic foraminifera, which should be hard to the touch. Sea sponges are squishier while Riftia pachyptila, the tube worm @vetteguy53081 is referring to, only occurs at great depth near hydrothermal vents and does not enter the trade. Reef tube worms are less irregular in shape.

 

[reefo420]

Do you have images under flashlight? My guess is harmless, filter-feeding benthic foraminifera, which should be hard to the touch. Sea sponges are squishier while Riftia pachyptila, the tube worm @vetteguy53081 is referring to, only occurs at great depth near hydrothermal vents and does not enter the trade. Reef tube worms are less irregular in shape.

these red things on the coral? i'll take a better picture now and post it here

 

[reefo420]

here is a picture with flashlight

 

[WheatToast]

here is a picture with flashlight

Thanks! Looks like benthic foraminifera.
Might be the foraminiferan Homotrema rubra:
https://www.semanticscholar.org/pap...f47b392f8aa0fc44619718baed3371970ddc/figure/7

 

[vetteguy53081]

I thought foraminiferans at first but are generally sponge-like- not tube like however if these are hard and stony, may be Homotrema rubrum which emit a white fuzzy growth from the tips and too would be harmless.

Foraminiferan:

 

[reefo420]

I thought foraminiferans at first but are generally sponge-like- not tube like however if these are hard and stony, may be Homotrema rubrum which emit a white fuzzy growth from the tips and too would be harmless.

Foraminiferan:

that's great! thank you, it is hard stony i was able to break some with my fingers so the mystery is solved!