Serious cyano conundrum

BRS

Jakepen

Few beers and I'll frag anything...
View Badges
Joined
Feb 2, 2016
Messages
2,240
Reaction score
696
Review score
+0 /0 /-0
Location
Michigan
Tank is 11 months old, handful of fish, decent cuc, skimmer is a nyos 160 runs 24/7, chateo grows 12 hours a night. Currently dosing no3 and po4, as I was unable to get detectable readings naturally. My no3 is 4 and po4 stays around 0.04. Cyano is starting to get out of control, I want to eradicate it without using chemicals, so asking for some advice.
51ED309E-3F7B-448C-922F-938E6B3A0625.jpeg
08107CF0-394D-4DE5-85A8-FC8C36BE14ED.jpeg
 

TexanCanuck

Active Member
View Badges
Joined
Feb 10, 2021
Messages
200
Reaction score
187
Review score
+0 /0 /-0
Location
Dallas, TX
Beautiful tank!

It sounds like you've got good control of nutrients in your tank (I'm jealous), so it sounds like you're doing the right things.

You'll find lots of differing viewpoints here on using bacteria supplements to help control Cyano. I won't try and take a position on that - I've had mixed success using any of them.

However, one thing I have had personal success with is increasing internal flow within the display and in particular, making sure I had flow across surfaces where Cyano frequently occurs. It's tough to do with the substrate, I know.

At the end of the day, I have the best success with Cyano using a combination of weekly water changes, good internal flow, and bi-weekly use of Vibrant.
 
OP
Jakepen

Jakepen

Few beers and I'll frag anything...
View Badges
Joined
Feb 2, 2016
Messages
2,240
Reaction score
696
Review score
+0 /0 /-0
Location
Michigan
Beautiful tank!

It sounds like you've got good control of nutrients in your tank (I'm jealous), so it sounds like you're doing the right things.

You'll find lots of differing viewpoints here on using bacteria supplements to help control Cyano. I won't try and take a position on that - I've had mixed success using any of them.

However, one thing I have had personal success with is increasing internal flow within the display and in particular, making sure I had flow across surfaces where Cyano frequently occurs. It's tough to do with the substrate, I know.

At the end of the day, I have the best success with Cyano using a combination of weekly water changes, good internal flow, and bi-weekly use of Vibrant.

I’ve used vibrant before, and didn’t like what come after I stopped using it. Currently I’m running the moonshiners method, so I haven’t done a water change in a few months. I have three tunze 6105s in the tank, I should point one at the cyano, try and break it up a bit.
 

fishface NJ

2500 Club Member
View Badges
Joined
Aug 27, 2019
Messages
3,821
Reaction score
23,269
Review score
+0 /0 /-0
Location
Morganville, New Jersey and Cape Coral, Florida
Wish I could get my NO3 to 4! My NO3 is 1 and PO4 stays around 0.03. Every time I dose NeoNitro I get cyano. Two days later the cyano is gone. I always wonder if I am screwing up the balance and should not dose. Hope you get an answer!
 
Fritz

Uncle99

2500 Club Member
View Badges
Joined
Jul 22, 2018
Messages
4,328
Reaction score
5,348
Review score
+0 /0 /-0
Location
Province of Ontario
Nitrate fine but PO4 is low IMM at 0.04ppm.
The Hanna checkers while great, still have a + - error and while you think you have 0.04ppm, maybe you have 0.08 or 0.00 taking into account the + - variance.

This was the case in my 180g and while mine showed 0.05ppm, ICP showed zero.

So I did three things.
1. I sucked out as much Cyano as possible.
2. I dosed phosphate up to .1ppm.
3. I maximized as much flow as made sense.
4. I did use chemiclean.

Took one week to have white sand again.

Personnaly, I think the trace numbers of 0.03-0.05ppm are low, I’ve had more success with slightly elevated levels.
2E5B477E-408D-44C8-B28E-FB1EC4A9E58D.jpeg
 

PeterC99

2500 Club Member
View Badges
Joined
Aug 28, 2020
Messages
2,731
Reaction score
10,833
Review score
+1 /0 /-0
Location
White Plains, NY
Three things got rid of my cyano naturally and I never cleaned any Cyano out of my tank.

1) Strong UV light
2) Started an Oxydator (look for threads on this site)
3) Phytoplankton every other day

Before and after pics (also have since increased the light point intensity by 15% on my Radions - up to 75%)

PO4 .05, NO3 2
Before 2021 04 28.jpg



After 2021 04 28.jpg
 
OP
Jakepen

Jakepen

Few beers and I'll frag anything...
View Badges
Joined
Feb 2, 2016
Messages
2,240
Reaction score
696
Review score
+0 /0 /-0
Location
Michigan
Three things got rid of my cyano naturally and I never cleaned any Cyano out of my tank.

1) Strong UV light
2) Started an Oxydator (look for threads on this site)
3) Phytoplankton every other day

Before and after pics (also have since increased the light point intensity by 15% on my Radions - up to 75%)

PO4 .05, NO3 2
Before 2021 04 28.jpg



After 2021 04 28.jpg

I am running a uv as well, although it’s just the right size. I will look into the oxydator threads, I’ve seen threads and benefits on adding phytoplankton, thought about starting a culture actually.
 

PeterC99

2500 Club Member
View Badges
Joined
Aug 28, 2020
Messages
2,731
Reaction score
10,833
Review score
+1 /0 /-0
Location
White Plains, NY
I am running a uv as well, although it’s just the right size. I will look into the oxydator threads, I’ve seen threads and benefits on adding phytoplankton, thought about starting a culture actually.
What was surprising was that the results were almost instantaneous - cyano disappeared right away. Was difficult finding an Oxydator but very easy to setup once sourced.

The Cyano has never reappeared since starting oxydator and phytoplankton.

Good luck!
 
Zoanthids

Timfish

Crusty Old Salt
View Badges
Joined
Jul 22, 2012
Messages
1,502
Reaction score
2,020
Review score
+0 /0 /-0
Location
Austin, TX
Kudos for not using chemicals to kill the cyano! Using procucts to kill unwanted algae don't address the underlying issues in the ecosystem and likely will only provide a short term solution. Two things I do might help. First I use stainless steel straws to siphon out the cyano, using stailess steel straws (or small tubing of some type) lets me get in close to corals without damaging them, crimping the siphon hose if needed to reduce flow. Second, to kill the cyano that's stuck in the nooks and cannies of the sand grains I sometimes also siphon off the top layer of sand, soak in H2O2 for a bit, rinse well in fresh water and let sit for a day or two before returning. I also use paper towels to remove algae off glass instead of just knocking it off with a magnet.

Be patient. Corals are actively promoting bacteria in the water that favors them, nuisance algae is actively promoting bacteria in the water beneficial to them and may promote pathogenic shifts int the coral microbiome. It takes time for corals (with your assistance) to shift an ecosystem from one that's benficial for nuisance algae to one that's beneficial for them.

Steel Straws

Paper towels for algae
 

merickson45

Community Member
View Badges
Joined
Sep 14, 2020
Messages
61
Reaction score
29
Review score
+0 /0 /-0
Location
Bay Area
What kind of light do you have on your refugium? Is your chaeto growing or GROWING? I had a similar problem and it improved significantly after upgrading my fuge light to a Kessil H380 (though I'm sure you could find cheaper options). I was trying to outcompete two Kessil A360s on the display with a tiny little 9w fuge light and my chaeto was not really growing, even with a 12 hour photoperiod. Now it's growing like crazy and the cyano has almost entirely receded. This was coupled with strategic timing of NO3 and PO4 dosing just after display lights out to give the chaeto the advantage.
 
OP
Jakepen

Jakepen

Few beers and I'll frag anything...
View Badges
Joined
Feb 2, 2016
Messages
2,240
Reaction score
696
Review score
+0 /0 /-0
Location
Michigan
What kind of light do you have on your refugium? Is your chaeto growing or GROWING? I had a similar problem and it improved significantly after upgrading my fuge light to a Kessil H380 (though I'm sure you could find cheaper options). I was trying to outcompete two Kessil A360s on the display with a tiny little 9w fuge light and my chaeto was not really growing, even with a 12 hour photoperiod. Now it's growing like crazy and the cyano has almost entirely receded. This was coupled with strategic timing of NO3 and PO4 dosing just after display lights out to give the chaeto the advantage.


Lol kind of funny but I have a very similar setup over my chateo (see pic). It grows it really well, however not at a very rapid rate, a better light would maybe be a good option. Thanks for the tip on the strategic timing of the no3 and po4, I’ll switch to nighttime.
 
OP
Jakepen

Jakepen

Few beers and I'll frag anything...
View Badges
Joined
Feb 2, 2016
Messages
2,240
Reaction score
696
Review score
+0 /0 /-0
Location
Michigan
What was surprising was that the results were almost instantaneous - cyano disappeared right away. Was difficult finding an Oxydator but very easy to setup once sourced.

The Cyano has never reappeared since starting oxydator and phytoplankton.

Good luck!


Just ordered a oxydator after reading some threads on them.
 
AS
OP
Jakepen

Jakepen

Few beers and I'll frag anything...
View Badges
Joined
Feb 2, 2016
Messages
2,240
Reaction score
696
Review score
+0 /0 /-0
Location
Michigan
Lol kind of funny but I have a very similar setup over my chateo (see pic). It grows it really well, however not at a very rapid rate, a better light would maybe be a good option. Thanks for the tip on the strategic timing of the no3 and po4, I’ll switch to nighttime.

Oops forgot to post the pic
0E5AE6C9-0259-4AD3-96BF-D3E9B8A303F0.jpeg
 
BRS

What is the best "cleaning product" or home recipe for cleaning reef tank equipment?

  • Water and scrubbing

    Votes: 50 12.6%
  • Citric Acid

    Votes: 196 49.4%
  • Vinegar

    Votes: 127 32.0%
  • Hydrogen peroxide

    Votes: 9 2.3%
  • Lemon Juice

    Votes: 1 0.3%
  • Other (please explain)

    Votes: 14 3.5%
TSM Aquatics
Top