White spot

  • Thread starter Thread starter salty105
  • Start date Start date
  • Tagged users Tagged users None

salty105

Community Member
View Badges
Joined
Mar 23, 2026
Messages
50
Reaction score
23
Location
Jacksonville
What state or country do you live in
Florida
Rating - 0%
0   0   0
This is my first post here, I’m new to the saltwater world. My tank is around 4 months old.

I have algea growing everywhere that I’m not doing much about and just letting it do its thing, I’m thinking it’s the ugly stage.

But today I just noticed a white spot with blue looking speckles in it, on one of the rocks and have no idea what it is. Any ideas?
20260323_132743_D92E0218-8568-451D-9D0B-49885611E21A.png
 
This is my first post here, I’m new to the saltwater world. My tank is around 4 months old.

I have algea growing everywhere that I’m not doing much about and just letting it do its thing, I’m thinking it’s the ugly stage.

But today I just noticed a white spot with blue looking speckles in it, on one of the rocks and have no idea what it is. Any ideas?
20260323_132743_D92E0218-8568-451D-9D0B-49885611E21A.png
If it is dark greyish or similar could be either bacteria changing the reef rock's color or algaeo growing over it. This happens if you started with new macro rocks that is completely white. Did you use new white rock?
 
This is my first post here, I’m new to the saltwater world. My tank is around 4 months old.

I have algea growing everywhere that I’m not doing much about and just letting it do its thing, I’m thinking it’s the ugly stage.

But today I just noticed a white spot with blue looking speckles in it, on one of the rocks and have no idea what it is. Any ideas?
20260323_132743_D92E0218-8568-451D-9D0B-49885611E21A.png
If it is dark greyish or similar could be either bacteria changing the reef rock's color or algaeo growing over it. This happens if you started with new macro rocks that is completely white. Did you use new white rock?
Gotcha, it’s kinda white. The reason I even asked is because that spot used to also be covered in the brown algae and all of the sudden it wasnt. It was clean dry rock that I began with and the tank is months old
 
Gotcha, it’s kinda white. The reason I even asked is because that spot used to also be covered in the brown algae and all of the sudden it wasnt. It was clean dry rock that I began with and the tank is months old
It's just visual changes in the process or maturation of your tank. Enjoy it ;-)
 

TOP 10 Trending Threads

WHAT FIRST SPARKED YOUR INTEREST IN REEFING?

  • I saw a reef tank that hooked me

    Votes: 17 22.7%
  • I was already keeping freshwater aquariums

    Votes: 31 41.3%
  • A particular fish got me interested

    Votes: 10 13.3%
  • Corals and inverts were the draw

    Votes: 13 17.3%
  • A friend or family member introduced me

    Votes: 8 10.7%
  • The science and ecosystem challenge appealed to me

    Votes: 16 21.3%
  • I stumbled into it… and here we are

    Votes: 9 12.0%
  • Other (Post in the comments)

    Votes: 9 12.0%
Back
Top
Home
Post thread…
Market
What's new