White Mound on Live Rock

kywill

New Member
View Badges
Joined
Jan 10, 2023
Messages
17
Reaction score
13
Location
Newport News
Rating - 0%
0   0   0
This white translucent mound popped up overnight. Tank is well established, without any major issues for the past 2 years. Any ideas? It seems rigid and sprouted from one tiny stem like branch. There has been no change in size over the past week.

1215F0F7-59FC-400B-88F1-D8837BED2759.jpeg
 

ISpeakForTheSeas

5000 Club Member
View Badges
Joined
Nov 22, 2021
Messages
6,458
Reaction score
7,787
Location
United States
Rating - 0%
0   0   0
This white translucent mound popped up overnight. Tank is well established, without any major issues for the past 2 years. Any ideas? It seems rigid and sprouted from one tiny stem like branch. There has been no change in size over the past week.

1215F0F7-59FC-400B-88F1-D8837BED2759.jpeg
From the description, I would guess it's some kind of macroalgae, I'm not sure. Maybe someone else will know for you. Do you have pics of it from any other angles?

Also, welcome to Reef2Reef!
 
OP
OP
kywill

kywill

New Member
View Badges
Joined
Jan 10, 2023
Messages
17
Reaction score
13
Location
Newport News
Rating - 0%
0   0   0
From the description, I would guess it's some kind of macroalgae, I'm not sure. Maybe someone else will know for you. Do you have pics of it from any other angles?

Also, welcome to Reef2Reef!
Here is another picture. Thanks for the welcome. I was a long time lurker prior to this post.
 

Attachments

  • DFA42EBB-87A4-48DD-8393-0B8E57F88749.jpeg
    DFA42EBB-87A4-48DD-8393-0B8E57F88749.jpeg
    136.8 KB · Views: 50
OP
OP
kywill

kywill

New Member
View Badges
Joined
Jan 10, 2023
Messages
17
Reaction score
13
Location
Newport News
Rating - 0%
0   0   0
Also, it is the same from every angle, it is like a dome sitting on the rock. And…. Now I have one on a different rock. I’m confused

777A1B32-62A9-4EED-9332-5089A4277E0F.jpeg
 

ISpeakForTheSeas

5000 Club Member
View Badges
Joined
Nov 22, 2021
Messages
6,458
Reaction score
7,787
Location
United States
Rating - 0%
0   0   0
Also, it is the same from every angle, it is like a dome sitting on the rock. And…. Now I have one on a different rock. I’m confused

777A1B32-62A9-4EED-9332-5089A4277E0F.jpeg
Are there any nudibranchs in you tank? Because some species will lay egg cases like this.
 
OP
OP
kywill

kywill

New Member
View Badges
Joined
Jan 10, 2023
Messages
17
Reaction score
13
Location
Newport News
Rating - 0%
0   0   0
Are there any nudibranchs in you tank? Because some species will lay egg cases like this.
Interesting…when my wife came home with a false pyjama chromodoris annae nudibranch about 7-8 months ago I figured it would starve. I haven’t seen it in quite some time.
 

ISpeakForTheSeas

5000 Club Member
View Badges
Joined
Nov 22, 2021
Messages
6,458
Reaction score
7,787
Location
United States
Rating - 0%
0   0   0
Interesting…when my wife came home with a false pyjama chromodoris annae nudibranch about 7-8 months ago I figured it would starve. I haven’t seen it in quite some time.
I honestly expect it would starve too. Do you happen to have any pics of your nudibranch? Most Chromodoris eggs I've seen are noticeably different than these.

It may still be a macroalgae (I'm not very familiar with many macros), but the fact that it's coming up so suddenly and looks similar to some nudibranch egg masses leads me to think it's probably not a macro.

Do you have any other oddball sea snails (including limpets, conchs, etc.) or sea slugs (nudibranchs, sea hares, etc.)?
 
OP
OP
kywill

kywill

New Member
View Badges
Joined
Jan 10, 2023
Messages
17
Reaction score
13
Location
Newport News
Rating - 0%
0   0   0
I don’t suppose you can get a better close-up? The “mound” itself is pretty fuzzy in the pic.
Best I could do was a top down with pumps off. Is this any better?
 

Attachments

  • 0058ED3F-DC49-4A27-AE5E-BF24983BF919.jpeg
    0058ED3F-DC49-4A27-AE5E-BF24983BF919.jpeg
    189.3 KB · Views: 69
  • E5C31599-344D-40C0-90C3-130A1C8F90E7.jpeg
    E5C31599-344D-40C0-90C3-130A1C8F90E7.jpeg
    285.4 KB · Views: 87
OP
OP
kywill

kywill

New Member
View Badges
Joined
Jan 10, 2023
Messages
17
Reaction score
13
Location
Newport News
Rating - 0%
0   0   0
I honestly expect it would starve too. Do you happen to have any pics of your nudibranch? Most Chromodoris eggs I've seen are noticeably different than these.

It may still be a macroalgae (I'm not very familiar with many macros), but the fact that it's coming up so suddenly and looks similar to some nudibranch egg masses leads me to think it's probably not a macro.

Do you have any other oddball sea snails (including limpets, conchs, etc.) or sea slugs (nudibranchs, sea hares, etc.)?
Definitely seems like some sort of egg sac, I took the 1st one that appeared out. Here is the underside.
 

Attachments

  • 06947D0D-BC74-4ADA-B119-8CABF2BBCB74.jpeg
    06947D0D-BC74-4ADA-B119-8CABF2BBCB74.jpeg
    100.2 KB · Views: 83

vetteguy53081

Well known Member and monster tank lover
View Badges
Joined
Aug 11, 2013
Messages
92,325
Reaction score
204,208
Location
Wisconsin -
Rating - 100%
14   0   0
This white translucent mound popped up overnight. Tank is well established, without any major issues for the past 2 years. Any ideas? It seems rigid and sprouted from one tiny stem like branch. There has been no change in size over the past week.

1215F0F7-59FC-400B-88F1-D8837BED2759.jpeg
Looks like sponge or tunicates, but pic is too fuzzy to confirm which but i believe tunicates
May be Mangrove tunicates.
 
OP
OP
kywill

kywill

New Member
View Badges
Joined
Jan 10, 2023
Messages
17
Reaction score
13
Location
Newport News
Rating - 0%
0   0   0
I honestly expect it would starve too. Do you happen to have any pics of your nudibranch? Most Chromodoris eggs I've seen are noticeably different than these.

It may still be a macroalgae (I'm not very familiar with many macros), but the fact that it's coming up so suddenly and looks similar to some nudibranch egg masses leads me to think it's probably not a macro.

Do you have any other oddball sea snails (including limpets, conchs, etc.) or sea slugs (nudibranchs, sea hares, etc.)?
No other oddballs. Just the normal fighting conch.
 

Tentacled trailblazer in your tank: Have you ever kept a large starfish?

  • I currently have a starfish in my tank.

    Votes: 64 31.5%
  • Not currently, but I have kept a starfish in the past.

    Votes: 53 26.1%
  • I have never kept a starfish, but I hope to in the future.

    Votes: 42 20.7%
  • I have no plans to keep a starfish.

    Votes: 42 20.7%
  • Other.

    Votes: 2 1.0%
Back
Top