Red Cyanobacteria

ty.normann

New Member
View Badges
Joined
Jun 26, 2025
Messages
12
Reaction score
12
Rating - 0%
0   0   0
20250812_195405_AFC6886D-CF6B-47CF-B8DE-49CE9EBD49F5.png


20250812_195406_7B8A650B-5F57-4FF0-8507-5C83E56E71C4.png

Hey All,

Fairly new to reefing!

About 2-3 months in and I have some red cyanobacteria that I just can’t seem to get rid of. I’ve done some research and would rather not use chemiclean but was wondering if you all had some tips or tricks!

All information is beneficial as i’m eager to learn more from you all!

2 Clown fish
1 six line wrasse
1 tiger pistol shrimp

Lots of lil corals!

20g
 

Crabs McJones

Regional Reef Manager (AKA Revhtree's Boss)
View Badges
Joined
Jul 24, 2017
Messages
33,593
Reaction score
153,862
Location
Wisconsin
Rating - 100%
3   0   0
What do you have for a clean up crew? Ceriths and trochus snails may help. Manual removal with a turkey baster. Up your flow. Blackout period are also alternative ways to fight it
 
OP
OP
ty.normann

ty.normann

New Member
View Badges
Joined
Jun 26, 2025
Messages
12
Reaction score
12
Rating - 0%
0   0   0
I do think I need to add some more CUC as I only have 1 snail and 1 blue hermit in there as of right now. How long would you recommend a black out period for?
 

Crabs McJones

Regional Reef Manager (AKA Revhtree's Boss)
View Badges
Joined
Jul 24, 2017
Messages
33,593
Reaction score
153,862
Location
Wisconsin
Rating - 100%
3   0   0
I do think I need to add some more CUC as I only have 1 snail and 1 blue hermit in there as of right now. How long would you recommend a black out period for?
Oh yes. Up that clean up crew for sure. What size is the tank?
I would start there before the blackout. Generally I do 4 to 5 days blackout if it gets too extreme.
 

NyReefer

Community Member
View Badges
Joined
Feb 3, 2010
Messages
79
Reaction score
40
Location
NY
Rating - 100%
2   0   0
I've been running my fingers through the sand where it is and it seems to help. Tank gets a little "dirty" for a couple mins but in all the cyano is thinning out. Changing out the filter sock everyday also. I try to pinch up and remove the thicker pieces but most of the time it falls out of my fingers.
 

Fish Fan

Master of Disaster
View Badges
Joined
Dec 8, 2017
Messages
13,481
Reaction score
35,119
Location
461 Ocean Boulevard
Rating - 100%
6   0   0
I agree with Mr. Mayor above, first thing is manual removal, and if you don't have one already, get yourself a trusty turkey baster and blast it off the rocks and sand. Try to siphon out what you can. Increase your flow so that the rest of the stuff is taken up by your mechanical media, and then remove it. The Cyano likes to grow in low-flow areas, so increasing the flow is good all around. A dark period of a few days can help to knock it back a little too, without any ill effects on the livestock.

Good luck!
 
Last edited:
OP
OP
ty.normann

ty.normann

New Member
View Badges
Joined
Jun 26, 2025
Messages
12
Reaction score
12
Rating - 0%
0   0   0
I do think I need to add some more CUC as I only have 1 snail and 1 blue hermit in there as of right now. How long would you recommend a black out period for?
Oh yes. Up that clean up crew for sure.
I would start there before the blackout. Generally I do 4 to 5 days blackout if it gets too extreme.
I really appreciate it! I know you said Cerithus and Trochus are good, are there any additional you believe are also great?
 

Crabs McJones

Regional Reef Manager (AKA Revhtree's Boss)
View Badges
Joined
Jul 24, 2017
Messages
33,593
Reaction score
153,862
Location
Wisconsin
Rating - 100%
3   0   0
I really appreciate it! I know you said Cerithus and Trochus are good, are there any additional you believe are also great?
Some hermits will also eat it
 

Rocks reef

Rockin' the Reef
View Badges
Joined
Aug 14, 2017
Messages
11,773
Reaction score
68,346
Location
Michigan
Rating - 100%
4   0   0
This hasnt been asked, but what are your parameters?
Something I have found out and others is adding copepods and dosing phyto.
Like mentioned, manual removal with turkey baster. If you have a filter sock, siphon the water through that too keep it put of your tank.
Increase flow.
 

Idoc

Getting lazier and lazier with upkeep!
View Badges
Joined
Nov 4, 2016
Messages
5,396
Reaction score
9,944
Location
Clarksville, TN
Rating - 0%
0   0   0
Your tank is extremely new. You don't have the biodiversity in the system yet to help control or equalize the nutrients. Be careful not to feed too much with such a small amount of fish. Many new reefers tend to over feed their fish which results in excess nutrients in the system. Then when the nutrients are out of whack, cyano shows up. Stir up the sand bed regularly, blow it off the rocks, change your filter socks often and just ride the tank uglies to the finish line eventually.
 

i cant think

Wrasse Addict
View Badges
Joined
Sep 1, 2021
Messages
20,596
Reaction score
34,565
Location
United Kingdom (England)
Rating - 0%
0   0   0
20250812_195405_AFC6886D-CF6B-47CF-B8DE-49CE9EBD49F5.png


20250812_195406_7B8A650B-5F57-4FF0-8507-5C83E56E71C4.png

Hey All,

Fairly new to reefing!

About 2-3 months in and I have some red cyanobacteria that I just can’t seem to get rid of. I’ve done some research and would rather not use chemiclean but was wondering if you all had some tips or tricks!

All information is beneficial as i’m eager to learn more from you all!

2 Clown fish
1 six line wrasse
1 tiger pistol shrimp

Lots of lil corals!

20g
If the sixline wasn’t there, I’d add a Koumansetta goby - they constantly munch on Cyanobacteria. But due to them being captive bred now, they will also take to prepared foods.
If it’s on the sand alone, Rainfordi will work, if it’s on the sand and rock, Hectori is a better option.
 

DO YOU THINK TECHNOLOGICAL ADVANCEMENTS ARE MORE HELPFUL OR HURTFUL TO REEFING?

  • More helpful.

    Votes: 59 42.1%
  • More hurtful.

    Votes: 5 3.6%
  • I think it depends mostly on the technology.

    Votes: 53 37.9%
  • I think it dependsmostly on the reefer behind the technology.

    Votes: 42 30.0%
Back
Top
Home
Post thread…
Market
What's new