Advanced question about diatoms

Miami Reef

10K Club Member
View Badges
Joined
Sep 8, 2017
Messages
11,256
Reaction score
20,910
Location
Miami Beach
Rating - 0%
0   0   0
Today I learned that diatoms are free swimming and the brown/gold dusting on the sand/rocks are the shells of the dead diatoms.

Whenever I don’t change my RODI, I get the diatom brown dusting on my sandbed. I noticed these diatom “shells” attach to the glass etc. When I change out the filter the dusting goes away within a week.

Here’s my questions:

How does diatom shells attach to objects like sand and glass?

How do the shells disappear within a short time period after removing their food source?

^ I don’t vacuum my sandbed and I hardly have any CUC. I don’t think anything is eating diatom shells.
 

Lasse

10K Club member
View Badges
Joined
Mar 20, 2016
Messages
10,906
Reaction score
29,950
Location
Källarliden 14 D Bohus, Sweden
Rating - 0%
0   0   0
Today I learned that diatoms are free swimming and the brown/gold dusting on the sand/rocks are the shells of the dead diatoms.

Whenever I don’t change my RODI, I get the diatom brown dusting on my sandbed. I noticed these diatom “shells” attach to the glass etc. When I change out the filter the dusting goes away within a week.

Here’s my questions:

How does diatom shells attach to objects like sand and glass?

How do the shells disappear within a short time period after removing their food source?

^ I don’t vacuum my sandbed and I hardly have any CUC. I don’t think anything is eating diatom shells.
I´m afraid that you are misinformed - Diatoms can be phytoplankton but also benthic (it means attaching to a substrate) There is a lot of species with different habitats - se here

https://diatoms.org/news/where-do-diatoms-live

and here


Sincerely Lasse
 
OP
OP
Miami Reef

Miami Reef

10K Club Member
View Badges
Joined
Sep 8, 2017
Messages
11,256
Reaction score
20,910
Location
Miami Beach
Rating - 0%
0   0   0

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

  • I currently have a starfish in my tank.

    Votes: 24 30.0%
  • Not currently, but I have kept a starfish in the past.

    Votes: 18 22.5%
  • I have never kept a starfish, but I hope to in the future.

    Votes: 21 26.3%
  • I have no plans to keep a starfish.

    Votes: 17 21.3%
  • Other.

    Votes: 0 0.0%
Back
Top