Please don’t be The Big D!

[dr1271]

Can someone help me distinguish what this is? I'm praying this isn't the Big D?!?!

Tank is a Waterbox 70.2 (55g total water volume). Live rock and sand has stayed with me as I slowly upgraded tanks over the past 8+ years. I do not have a microscope yet to properly identify, but on the sand bed I have a few different spots of these finger looking reddish algae. They are out during the day and at night as when I took the photos. Today I pulled out one by hand and in the sand bed attached to one was almost a bristleworm looking thing.

Parameters:
pH: 8.5
Kh: 7.8
No3: .68
Po4: 0.07ppm
Mg: 1300
Cal: 450
Salinity: 1.024
Temp: 80.1 °F (Recently slowly bumped this up from 77)

Equipment:
-Ulva Macroalgae (PaxBellum)
-Skimmer (Nyos Quantum)
-Filter Roller (Klir)
-Auto Water Change (1.25g per day)

 

[AutumnReefs]

EDIT: ignore what I initially wrote. Its probably spaghetti worms


Anyways I would up your nitrate. Low nitrate + slightly elevated phosphate is not good for corals.

 

[MERKEY]

I think they are spaghetti worms if you pulled it out and it had a "bristleworm looking thing".

Google spaghetti worms and see if that's it

 

[AutumnReefs]

I think they are spaghetti worms if you pulled it out and it had a "bristleworm looking thing".

Google spaghetti worms and see if that's it

Whoopsie I didn't see that part.

+1 on spaghetti

 

[dr1271]

I think they are spaghetti worms if you pulled it out and it had a "bristleworm looking thing".

Google spaghetti worms and see if that's it

I AM SO RELIEVED!!!! This is exactly what it is. I thought it was just a coincidence that there was a worm attached to the one I pulled out.

Thank you Merkey you made my night as I was preparing for the worse!

Happy Reefing!