Small radial white dots with many arms on glass

[Nordy]

Tank is at about week 7 cycling. Used dry rock for aqua scape and have a deep sand substrate to accompany a BSJ. Used Red Sea reef mature for the first 21 days, bought clean chaeto for refugium. Probably skipped a preventative measure for hitchhikers, but I have white dots on the glass that have something that looks like mycelium fibers attached around in a radial pattern. Maybe fungi? Reminds me of a snowflake. Any idea what this is and a lead I can use to read up on them?

 

[BristleWormHater]

Tank is at about week 7 cycling. Used dry rock for aqua scape and have a deep sand substrate to accompany a BSJ. Used Red Sea reef mature for the first 21 days, bought clean chaeto for refugium. Probably skipped a preventative measure for hitchhikers, but I have white dots on the glass that have something that looks like mycelium fibers attached around in a radial pattern. Maybe fungi? Reminds me of a snowflake. Any idea what this is and a lead I can use to read up on them?

Pictures are needed. Are you familiar with aptasia? That would be my first guess

 

[jonyv0992]

Sounds like you're explaining spirorbid worms. They're good filter feeders from my understanding.

 

[jonyv0992]

Tank is at about week 7 cycling. Used dry rock for aqua scape and have a deep sand substrate to accompany a BSJ. Used Red Sea reef mature for the first 21 days, bought clean chaeto for refugium. Probably skipped a preventative measure for hitchhikers, but I have white dots on the glass that have something that looks like mycelium fibers attached around in a radial pattern. Maybe fungi? Reminds me of a snowflake. Any idea what this is and a lead I can use to read up on them?

Sounds like you're explaining spirorbid worms. They're good filter feeders from my understanding.

 

[Nordy]

Sounds like you're explaining spirorbid worms. They're good filter feeders from my understanding.

Wish I could get you guys a pic, but they are tiny, and my phone doesn’t cut it for a descent photo. I’ll look up spirorbid worms. Thank you

 

[Nordy]

Got a pic!

 

[BristleWormHater]

Got a pic!

Definitely not aptasia or spirorbid worms.
@ISpeakForTheSeas any ideas?

 

[BristleWormHater]

Got a pic!

Look up ball anemone that's my best guess. They are harmless by the way(if they are ball anemones)

 

[ISpeakForTheSeas]

Definitely not aptasia or spirorbid worms.
@ISpeakForTheSeas any ideas?

Looks like hydroid medusae of some variety; they're common in newer tanks and typically die off after a while (most need food like copepods, rotifers, brine shrimp, etc. to feed; a few are photosynthetic and may stick around if the lights are on).

 

[Nordy]

Greatly appreciate the insight on Hydroid Medusae.

 

[Hemmbone20]

I found this thread while researching my similar issue… does this look similar to yours? Took forever to get a good photo, they’re so small…
There’s hundreds in my tank. Really blew up in the past week or so. Any ideas?

 

[ISpeakForTheSeas]

I found this thread while researching my similar issue… does this look similar to yours? Took forever to get a good photo, they’re so small…
There’s hundreds in my tank. Really blew up in the past week or so. Any ideas?

Can't say for sure from the pic, but my guess would be hydroid medusae, yeah.

 

[Hemmbone20]

Can't say for sure from the pic, but my guess would be hydroid medusae, yeah.

They’re very hard to get the camera to focus on..
some basic research on these indicates they’ll probably go away on their own eventually? Is that the consensus?

 

[ISpeakForTheSeas]

They’re very hard to get the camera to focus on..
some basic research on these indicates they’ll probably go away on their own eventually? Is that the consensus?

Yeah, unless they have access to food (like copepods, Artemia nauplii, etc.) or are one of the photosynthetic species, they should disappear soon.

 

[Hemmbone20]

Yeah, unless they have access to food (like copepods, Artemia nauplii, etc.) or are one of the photosynthetic species, they should disappear soon.

That explains why all my copepods seem to have disappeared… thank you.

You really are the hitchhiker expert!

 

[ISpeakForTheSeas]

That explains why all my copepods seem to have disappeared… thank you.

You really are the hitchhiker expert!

Haha, I try - I still have plenty to learn though.

 

[Nordy]

That explains why all my copepods seem to have disappeared… thank you.

You really are the hitchhiker expert!

My pods have been consumed quite quickly and a light pod population exists on my glass now, however the population of Medusae is in decline.

 

[Peter Houde]

Tank is at about week 7 cycling. Used dry rock for aqua scape and have a deep sand substrate to accompany a BSJ. Used Red Sea reef mature for the first 21 days, bought clean chaeto for refugium. Probably skipped a preventative measure for hitchhikers, but I have white dots on the glass that have something that looks like mycelium fibers attached around in a radial pattern. Maybe fungi? Reminds me of a snowflake. Any idea what this is and a lead I can use to read up on them?

Sounds like hydroids

 

[seahuy]

Got a pic!

Hydroids!!! This is Medusa stage so learn about the stages. These things can get filtered out through a 50micron sock. They can take over tank if u have a lot of feed in water column

 

[Nordy]

Hydroids!!! This is Medusa stage so learn about the stages. These things can get filtered out through a 50micron sock. They can take over tank if u have a lot of feed in water column

How does a roller filter mat compare?