Help identifying white crystal/webbing on rocks

BRS
Jump to Last
S

spaghettinick

New Member
View Badges
Joined
Jan 15, 2026
Messages
6
Reaction score
4
Rating - 100%
1   0   0
This white stuff has been growing in the underside of my rocks and behind some corals. Thought it was just some sort of sponge, but looking for confirmation.

IMG_3850.jpeg IMG_3849.jpeg IMG_3847.jpeg IMG_3846.jpeg
 
Tidal Gardens
Saltwater Aquarium

Similar threads

T
Help - What is this growing on my rock work?
Replies
4
Views
118
Fish Fan
Fish Fan
GHOSTLY
Brown spot on acro
Replies
8
Views
82
mcarroll
mcarroll
C
Help me with white substance
Replies
1
Views
61
EnterName
EnterName
T
Help with Hitchhiker ID
Replies
1
Views
32
EnterName
EnterName
S
Identifying this algae or sponge or …
Replies
6
Views
100
Savage Henry
S

TOP 10 Trending Threads

AlyciaMarie
    • Like
What's the best $50 or less you've spent on reefing?
2
Replies
23
Views
442
Michael Hughes
Michael Hughes
K
Some SPS not doing well
2 3 4
Replies
70
Views
734
slingfox
slingfox
SquidwardTentacles05
    • Like
Will this keep linckia starfish from starving to death?
2 3
Replies
50
Views
770
SquidwardTentacles05
SquidwardTentacles05
revhtree
    • Like
Besides Brute trash cans what are you using for water storage?
2
Replies
36
Views
905
Euphylliaphyle
Euphylliaphyle
jimmypencil
    • Like
  • Poll Poll
Vermatid Snail Success Stories?
2 3
Replies
43
Views
1,777
SneaksMcdoogle
SneaksMcdoogle
G
    • Like
Can one grow macroalgae in the back compartment of an AIO tank?
2
Replies
23
Views
269
anarvaez
A
keepingfishwithnoidea
    • Like
I just got two tridacna clams with my zoas as a hitchhicker, advice on how to keep it alive?
2
Replies
28
Views
632
sassyonmane
S
Nixperience
    • Like
  • Poll Poll
Nano Build Skimmer or Refugium
2
Replies
20
Views
324
Lasse
Lasse
D
Bio media in sump
2
Replies
20
Views
560
slingfox
slingfox
DoriReef
    • Like
What is this? Algae?
2
Replies
25
Views
311
DoriReef
DoriReef
BRS

WHAT MAKES A REEF FEEL ESTABLISHED TO YOU?

  • Stable parameters over time

    Votes: 23 62.2%

  • Consistent coral growth

    Votes: 14 37.8%

  • Fish and inverts are settled

    Votes: 7 18.9%

  • The tank has moved past its ugly stages

    Votes: 11 29.7%

  • It has survived a major setback

    Votes: 0 0.0%

  • At least six months old

    Votes: 2 5.4%

  • At least one year old

    Votes: 7 18.9%

  • Stop worrying about age—it’s about stability

    Votes: 8 21.6%

  • Other (Post in the comments)

    Votes: 2 5.4%
See comments…

New Posts

Nutramar Foods
Dinkins Aquatic Gardens
TSA
SaltwaterAquarium.com
TCK Corals
Tidal Gardens
World Wide Corals
New Posts
Back
Top
Home
Forums
Post thread…
Market
What's new