Filamentous diatoms?

plumbdogmillionaire

Community Member
View Badges
Joined
Nov 7, 2025
Messages
72
Reaction score
35
Location
alabama
What state or country do you live in
Alabama
Rating - 100%
1   0   0
I’m pretty sure these are Filamentous diatoms based on a post from ReefBum with a very similar picture. Tank is 3 months old, algae has been there about 6 weeks. I have scrubbed multiple times. I ordered a Salifert Silicate test kit that will hopefully let me see if my RODI water has lots of silicates in it. I’m really looking for recommendations on what to do. Scrub and wait it out, 3 day blackout, chemicals?
20260312_174811_3E3F66BF-650D-42B6-B89C-DC5B4628F961.png
 
Looks like the start of some hair algae. Do you have any snails or other inverts to eat the algae?
 
I’ve read many snails will not eat GHA if it’s too long/thick. Manually export will help a lot - siphon and scrub with a toothbrush as much as you can and export during water changes.
 
How old is the tank? I had a round similar to this when tank was 2-3 months old and it was Dino’s. But daily cleanings and removal along with getting nutrients back in line cleared it up quick. Place a sample under microscope to confirm what it is.
 
I’m pretty sure these are Filamentous diatoms based on a post from ReefBum with a very similar picture. Tank is 3 months old, algae has been there about 6 weeks. I have scrubbed multiple times. I ordered a Salifert Silicate test kit that will hopefully let me see if my RODI water has lots of silicates in it. I’m really looking for recommendations on what to do. Scrub and wait it out, 3 day blackout, chemicals?
20260312_174811_3E3F66BF-650D-42B6-B89C-DC5B4628F961.png
Looks like a filamentous bacteria growth
 

TOP 10 Trending Threads

WHICH TYPE OF MISTAKE TAUGHT YOU YOUR MOST EXPENSIVE REEFKEEPING LESSON?

  • Moving too quickly or adding too much at once

    Votes: 7 33.3%
  • Skipping—or shortening—quarantine or dipping

    Votes: 5 23.8%
  • Buying the wrong equipment the first time

    Votes: 4 19.0%
  • Ignoring maintenance, warning signs, or redundancy

    Votes: 6 28.6%
  • Chasing numbers or making too many changes

    Votes: 3 14.3%
  • Choosing incompatible fish, corals, or invertebrates

    Votes: 3 14.3%
  • Poor aquascaping or tank-design decisions

    Votes: 1 4.8%
  • Failing to research an animal’s needs

    Votes: 1 4.8%
  • Trusting bad advice

    Votes: 3 14.3%
  • Doing something on the tank when you should've gone to bed

    Votes: 4 19.0%
  • Something else—tell us below

    Votes: 4 19.0%
  • I’m still waiting for my first expensive lesson!

    Votes: 3 14.3%
Back
Top
Home
Post thread…
Market
What's new