Bubble like tree and something worm like

[beehive124]

ID Please…

Picked up a patch of GSP from a guy and noticed these critters

Ignore the GHA lol xD
Figuring that out atm

 

[WheatToast]

The top organism does seem to be a worm, maybe Chaetopteridae or Spionidae (Spionid worms). I only have limited experience with these, but from what I have read, they can rapidly multiply, though they are otherwise harmless detritivores/suspension feeders.

The bottom organism is Grape Caulerpa (such as Caulerpa racemosa or Caulerpa lentillifera). It is a fast growing green macroalgae that is notorious for its rapid growth rate. Thus, without regular trimming, it can easily become invasive in captivity, going sexual and releasing spores when it has overcrowded its environment or becomes stressed. However, it is also great for nutrient export in refugia since it grows so fast.

 

[beehive124]

The top organism does seem to be a worm, maybe Chaetopteridae or Spionidae (Spionid worms). I only have limited experience with these, but from what I have read, they can rapidly multiply, though they are otherwise harmless detritivores/suspension feeders.

The bottom organism is Grape Caulerpa (such as Caulerpa racemosa or Caulerpa lentillifera). It is a fast growing green macroalgae that is notorious for its rapid growth rate. Thus, without regular trimming, it can easily become invasive in captivity, going sexual and releasing spores when it has overcrowded its environment or becomes stressed. However, it is also great for nutrient export in refugia since it grows so fast.

Thank you!

 

[vetteguy53081]

Top is likely Vermetid as the two palps are very visible, Spionid long and more stringy unless it retracted.

Spionid:

Vermetid with Palps: