Help with green hair algae

Blueberry1988

New Member
View Badges
Joined
Oct 19, 2024
Messages
22
Reaction score
14
Location
Miami Beach
Rating - 0%
0   0   0
Hi guys, I've been away for 10 days and my 15gal cube has been left with a automatic feeder that brought my Nitrate and Phosphate high and caused green air algae. The tank is a mix coral tank so I have SPS and LPS corals and a few mushrooms.
I'm thinking of getting a few snails and urchin to help clean up this mess but I'm not sure if they're gonna get the job done. What can I use?? Please help I've a bunch of corals coming
 

Knucker

Active Member
View Badges
Joined
Aug 23, 2024
Messages
102
Reaction score
127
Location
Franklin
Rating - 0%
0   0   0
Court Jester Goby loves Hair algae and they stay small. Some snails do eat hair algae but they are well slow as snails. Mexican Turbo is a hardy eater. They just circle my tank over and over. I would also do a large water change and keep doing them because when that Algae dies your nitrates and phosphates will spike again.

Adding some Media that will remove nitrates and phosphates will be a good addition as well.

Stay away from algaecides! They might kill the algae but also a bunch of your coral too. At least in my experience.

I almost forgot to mention substrate sauce. It's a beneficial bacteria that eat the carbon out of the nitrates and phosphates. Bulk Reef Supply has them in stock. They also have the gut bacteria for fish ect
 
Last edited:
OP
OP
Blueberry1988

Blueberry1988

New Member
View Badges
Joined
Oct 19, 2024
Messages
22
Reaction score
14
Location
Miami Beach
Rating - 0%
0   0   0
thank you for your response I was looking at a product Vibrant but I've never used it and I'm scared is going to affect my corals
 
OP
OP
Blueberry1988

Blueberry1988

New Member
View Badges
Joined
Oct 19, 2024
Messages
22
Reaction score
14
Location
Miami Beach
Rating - 0%
0   0   0
Just get your hands wet first. No harsh chemicals.
yes I'm trying but there's only much you can do with hand. the situation is not bad bad but is gonna be if I don't act. Ok so I'll try with my clean up crew and my hand see what happens... Does anyone recommend scraping the rocks with like a tooth brush?
 

exnisstech

Grumpy old man
View Badges
Joined
Feb 11, 2019
Messages
10,593
Reaction score
15,225
Location
Ashland Ohio
Rating - 0%
0   0   0
Were your N and P actually elevated? Personally I'm not 100% sold on high N and P causing gha. I have a tank that runs N 10ish and P 0.24-0.45 and I have zero GHA. I have another tank that runs N and P barely detectable and it's a mess with GHA. Wish I had the answer but I think there is more to it than elevated N and P levels.
 
OP
OP
Blueberry1988

Blueberry1988

New Member
View Badges
Joined
Oct 19, 2024
Messages
22
Reaction score
14
Location
Miami Beach
Rating - 0%
0   0   0
Were your N and P actually elevated? Personally I'm not 100% sold on high N and P causing gha. I have a tank that runs N 10ish and P 0.24-0.45 and I have zero GHA. I have another tank that runs N and P barely detectable and it's a mess with GHA. Wish I had the answer but I think there is more to it than elevated N and P levels.
yes they were, not too much but they were, Nitrates were at 14 and phosphate at 0.15. so they were not crazy high but maybe because it went on for more than 10 days like that
 
OP
OP
Blueberry1988

Blueberry1988

New Member
View Badges
Joined
Oct 19, 2024
Messages
22
Reaction score
14
Location
Miami Beach
Rating - 0%
0   0   0
Court Jester Goby loves Hair algae and they stay small. Some snails do eat hair algae but they are well slow as snails. Mexican Turbo is a hardy eater. They just circle my tank over and over. I would also do a large water change and keep doing them because when that Algae dies your nitrates and phosphates will spike again.

Adding some Media that will remove nitrates and phosphates will be a good addition as well.

Stay away from algaecides! They might kill the algae but also a bunch of your coral too. At least in my experience.

I almost forgot to mention substrate sauce. It's a beneficial bacteria that eat the carbon out of the nitrates and phosphates. Bulk Reef Supply has them in stock. They also have the gut bacteria for fish ect
I've bought the fish, thank you for the suggestion!! nice looking fish too, hard to find but I've found it!!
 

Lavey29

10K Club member
View Badges
Joined
Apr 29, 2021
Messages
13,117
Reaction score
14,356
Location
United States
Rating - 0%
0   0   0
yes I'm trying but there's only much you can do with hand. the situation is not bad bad but is gonna be if I don't act. Ok so I'll try with my clean up crew and my hand see what happens... Does anyone recommend scraping the rocks with like a tooth brush?
How old is the tank? Cut lights to 6 hours for few weeks with blue and uv only no whites. Diverse cleaner crew with tuxedo urchin and turbos. Daily manual removal. Raise magnesium to 1500. GHA is a normal part of tank activity and can be remedied in this manner but expect at least 2 months work.
 

exnisstech

Grumpy old man
View Badges
Joined
Feb 11, 2019
Messages
10,593
Reaction score
15,225
Location
Ashland Ohio
Rating - 0%
0   0   0
yes they were, not too much but they were, Nitrates were at 14 and phosphate at 0.15. so they were not crazy high but maybe because it went on for more than 10 days like that


How long has the tank been running and did you start with dry rock? I think its more of a bacteria / bio diversity issue rather than just elevated N and P that cause gha to grow. All speculation on my part with nothing to back it up but anecdotal evidence.
More detail from my post above.
I set up a tank last march and nitrates went to 10 and have been hovering there since. Phosphate started at 0.45 and fluctuate between 0.25 - 0.40 for the last few months. Tank was started with dry rock bare bottom but the sump is full of old live rock. Never had gha.
Another tank started 18 months ago dry rock barebottom but trays of live rock rubble in the sump and I've never had any trouble with GHA. N and P are barely detectable and I dose when I see 0.
Third tank I rescaped with all dry rock barebottom with no live rock. N and P barely detectable and also dosed when I see 0. This tank has been a mess for 14+ months with gha everywhere. I used Flux rx early on and ended up with cyano then did chemi clean. The cycle continued and I finally stopped adding chems and let the tank go. I did a couple of rip cleans along the way with manual removal durring water changes. It's still not perfect but is coming along. This was the gha from a 4g WC vacuuming the back wall a week or two ago.
PXL_20240928_222425444.jpg
 

vetteguy53081

Well known Member and monster tank lover
View Badges
Joined
Aug 11, 2013
Messages
96,707
Reaction score
215,505
Location
Wisconsin -
Rating - 100%
15   0   0
Hi guys, I've been away for 10 days and my 15gal cube has been left with a automatic feeder that brought my Nitrate and Phosphate high and caused green air algae. The tank is a mix coral tank so I have SPS and LPS corals and a few mushrooms.
I'm thinking of getting a few snails and urchin to help clean up this mess but I'm not sure if they're gonna get the job done. What can I use?? Please help I've a bunch of corals coming
Sounds like overfeeding may have occurred raising Phos levels and an abundance of light. Is this tank at or near a window?
Can you provide pic of the algae and tank under white light intensity? Assuming its an accumulation of gha, your best bet will be to place rock in a container of tank water and pull off as much as you can by hand and scrub the rest with a firm toothbrush and some 3% hydrogen peroxide.
Return to tank, reduce white light intensity and number of hours of white lighting and add some snails such as :
Astrea
cerith
turbo grazer
trochus

A Pencil urchin

8-10 Caribbean blue leg hermits
 
OP
OP
Blueberry1988

Blueberry1988

New Member
View Badges
Joined
Oct 19, 2024
Messages
22
Reaction score
14
Location
Miami Beach
Rating - 0%
0   0   0
so the tank is a year hold and you can check the picture of the tank here
 

Attachments

  • IMG_7863.jpg
    IMG_7863.jpg
    261.1 KB · Views: 54

Knucker

Active Member
View Badges
Joined
Aug 23, 2024
Messages
102
Reaction score
127
Location
Franklin
Rating - 0%
0   0   0
Let's also not forget the algae will eat the nitrates and phosphates as it grows, and will release them as they die.
 

Knucker

Active Member
View Badges
Joined
Aug 23, 2024
Messages
102
Reaction score
127
Location
Franklin
Rating - 0%
0   0   0
The numbers will fluctuate. Keep them low with the Substrate sauce and weekly 20% water changes until the algae is gone then go back to your normal routine, the Substrate sauce should keep the nitrates and phosphates low after that.
 

HAVE YOU EVER KEPT A RARE/UNCOMMON FISH, CORAL, OR INVERT? SHOW IT OFF IN THE THREAD!

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%
Back
Top