Hydrogen peroxide

[Cory]

Ive read that lagoons can accumlate as much as 250 nM of h202. How much is that in ppm?

I want to dose my tank daily this concentration. How many ml of 3% h202 would i need approximately? Tank is 200 gallons.

I want to see if it has an effect on hair algae.

 

[tsav87]

Ive read that lagoons can accumlate as much as 250 nM of h202. How much is that in ppm?

I want to dose my tank daily this concentration. How many ml of 3% h202 would i need approximately? Tank is 200 gallons.

I want to see if it has an effect on hair algae.

How old is your tank?

 

[Cory]

How old is your tank?

About 6 months

 

[tsav87]

With your tank being 200g, do you have any tangs or rabbit fish in your system? They would normally mow the HA down in a hurry.

 

[Cory]

With your tank being 200g, do you have any tangs or rabbit fish in your system? They would normally mow the HA down in a hurry.

Yes i do i have two large tangs. They dont touch it.

 

[tsav87]

Yeh some get spoiled to prepared foods I'm afraid

I have tried hydrogen peroxide with a 1ml/10 gallons but it had no effect on bryopsis. Some have had success with Vibrant, but I did not.

Are you sure you are dealing with run of the mill hair algae?

 

[Cory]

Yeh some get spoiled to prepared foods I'm afraid

I have tried hydrogen peroxide with a 1ml/10 gallons but it had no effect on bryopsis. Some have had success with Vibrant, but I did not.

Are you sure you are dealing with run of the mill hair algae?

Yep its hair algae for sure. I might try 1ml per 10 gallons. It dies easy when i spray it directlywith h202.

 

[Randy Holmes-Farley Verified Community Expert]

Ive read that lagoons can accumlate as much as 250 nM of h202. How much is that in ppm?

I want to dose my tank daily this concentration. How many ml of 3% h202 would i need approximately? Tank is 200 gallons.

I want to see if it has an effect on hair algae.

250 nM of hydrogen peroxide is 8,500 nanograms per liter, or about 0.009 ppm.

That means about 0.28 mg of 3% hydrogen peroxide per liter of tank water. Not much. lol

 

[Cory]

250 nM of hydrogen peroxide is 8,500 nanograms per liter, or about 0.009 ppm.

That means about 0.28 mg of 3% hydrogen peroxide per liter of tank water. Not much. lol

Lol is that basically like a drop of a salifert syringe? Or .056 grams?

The thought is does dosing a continous amount in the quantity kill algae.

 

[Randy Holmes-Farley Verified Community Expert]

I wouldn’t be sure you do not already have that much or more, but I doubt it would hurt anything to dose this amount.

 

[JimWelsh]

Ive read that lagoons can accumlate as much as 250 nM of h202.

Reference?

 

[Cory]

Reference?

Actually it said exceeded open water by 100-250 nM so whatever the total was im unawre.

http://onlinelibrary.wiley.com/doi/10.1002/2013JG002483/abstract

 

[Cory]

250 nM of hydrogen peroxide is 8,500 nanograms per liter, or about 0.009 ppm.

That means about 0.28 mg of 3% hydrogen peroxide per liter of tank water. Not much. lol

Was that a typo? Should it say .28ml not mg?

 

[Cory]

While the amount is small its interesting to me that the ocean maintains a consistantly measurable amount of h202 durring the day. Open oceans maintain 8-100 nM of it in surface waters. And coastal areas maintain 100-250 nM more than the open ocean. The daily accumlation and nightly reduction of it must be doing something. Perhaps it kills bacteria. Ive found that oxidized algae is more palatable to snails, as ive watched them eat white algae but not touch green hair. Perhaps oxidized bacteria are also more tasteful to coral?

So just as we manipulate alkalinity to higher concentrations with the hopes of increasing growth of sps, is it reasonable to also increase h202 to slightly higher concentrations than nsw contains and maintain it daily as we would with alkalinity?

 

[Randy Holmes-Farley Verified Community Expert]

Half time of hydrogen peroxide in seawater is 12-120 h, according to Millero, who also says it ranges from 10 -200 nM and generally correlates with organic matter (more organics yields more hydrogen peroxide). Some is made by UV reacting with organics, and some by metals reacting with UV.