Wondering what this is...GHA?

[William Buchanan]

Tank is 4.5 mos old. I have a sump with a large section of chaeto which hasn’t grown in a month (actually shrunk some) but is still alive.
I did add some coralline boosters a couple of months ago.

Just got my test kits for calcium, KH , and p04. These are my first results.

Ammonia 0
Nitrite 0
Nitrate 10
P04 .25
Alk/kh 9.6
Ca 370
Mg 1110
Potassium 390
PH 8.3
Temp 78
Salinity 1.025
Total 180 gallons started with dry rock and live sand.
Six mollies
Orchid dottyback
Canary blenny
Diamond gobie
Bicolor blenny

 

[Hitman]

Sure enough it's the starting of GHA. No biggy just the ugly stages of a young tank. I personally would run GFO to get those PO4 numbers down closer to 0.02 or at least below 0.10

 

[William Buchanan]

Thanks, how long does it take for the “hair” part to start showing up?

 

[Flippers4pups]

Thanks, how long does it take for the “hair” part to start showing up?

It may be coraline starting, but.....

Did you cure your rock before placing in the DT?

The reason I ask is that with your P04 high, it's likely leaching out of it.

 

[William Buchanan]

No I did not.
I didn't realize a couple of rocks had decaying stuff inside them. They have been in there since day one. At least the brown(diatoms?) covering and then the cyano coverings are gone. All the rocks and sand were enveloped by those at some point. Those rocks sat in a rubbermaid tub in my basement for 15 years. I figured they wouldn't possibly have anything that could rot in there but I was wrong.

Is there anything I can do to help short of taking the pukani out?

 

[Flippers4pups]

Could use lanthanum chloride.

https://www.reef2reef.com/threads/dosing-lanthanum-chloride-a-personal-experience.354940/

 

[William Buchanan]

Thanks for the link! I’ll look into it!

 

[Thecoralreefaquarium]

Bring magnesium up to 1600 to stop hair algae.

 

[davocean]

Bring magnesium up to 1600 to stop hair algae.

Elevated mag takes care of bryopsis, but not HA, and only the old kent tech M formula did that(Brightwell has now taken that formula and the new brightwell magnesium will rid bry, but not HA.)

Fluconzole will rid HA, but I would not begin throwing chems at it just yet, newish tanks will typically have some temporary issues.

 

[lapin]

Its a new tank and its gonna be green, red, brown ect....as you know. Depending on what algae spores came on your chaeto, that is what that green stuff is. What you might do now is get some snails that like to hang on rocks. They might like the stuff. With enough of them, problem solved. Or maybe you like it and its not an issue. Before I messed with LC, I would try a reactor with GFO to reduce your Po4 to .1. If that does not bring it down, its prob the rock and as Mr Flippers says LC will do the trick.

 

[DraggingTail]

Tank is 4.5 mos old. I have a sump with a large section of chaeto which hasn’t grown in a month (actually shrunk some) but is still alive.
I did add some coralline boosters a couple of months ago.

Just got my test kits for calcium, KH , and p04. These are my first results.

Ammonia 0
Nitrite 0
Nitrate 10
P04 .25
Alk/kh 9.6
Ca 370
Mg 1110
Potassium 390
PH 8.3
Temp 78
Salinity 1.025
Total 180 gallons started with dry rock and live sand.
Six mollies
Orchid dottyback
Canary blenny
Diamond gobie
Bicolor blenny

That's not green hair algae. That's Green Calcareous. I bet you cannot scrub it off. It's good stuff. Nothing else will grow there. And, I like the look IMO.

 

[DraggingTail]

Tank is 4.5 mos old. I have a sump with a large section of chaeto which hasn’t grown in a month (actually shrunk some) but is still alive.
I did add some coralline boosters a couple of months ago.

Just got my test kits for calcium, KH , and p04. These are my first results.

Ammonia 0
Nitrite 0
Nitrate 10
P04 .25
Alk/kh 9.6
Ca 370
Mg 1110
Potassium 390
PH 8.3
Temp 78
Salinity 1.025
Total 180 gallons started with dry rock and live sand.
Six mollies
Orchid dottyback
Canary blenny
Diamond gobie
Bicolor blenny

I advise against dosing chemicals. You will harm more good things than you will fix bad. There are a ton of drama queens around here. Let nature run its course and it will be fine

 

[William Buchanan]

That's not green hair algae. That's Green Calcareous. I bet you cannot scrub it off. It's good stuff. Nothing else will grow there. And, I like the look IMO.

You’re right, it won’t scrub off. I haven’t seen the cuc attempt to get it off either. Thanks for the response and I’ll let nature take its course. [emoji108]