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Hydrogen peroxide dosing?

dz6t

Acro Garden
BRS Sponsor
BRS Member
Anyone is dosing hydrogen peroxide into their tanks? (Not used as a dip)
how much and how often do you dose? What benefits do you see?
Any feedback will be greatly appreciated.
Dong
 
Little curious on the group's feedback for this one myself. I've seen people mentioning .5-1ml per gallon throughout my searches but no real consensus on what's "safe". I've personally dosed as high as 2ml/gallon in my freshwater systems without issues, just not sure what if any negative affects it could have in a marine environment.
 
Not sure I this is what you after:

 
Not sure I this is what you after:

My goal with it is to put the final nail in the coffin for the gha I've been battling recently.
 
I am thinking about improving the clarity of water and reduce algae.
 
I watched an episode of livestream with Salem, Chris Meckley and Justin Credabel, they mentioned hydrogen peroxide dosing. That sparked my interest.
 
I dosed H2O2 many times in my pico ~2g. All for hair algae control with my Carib Sea life rock.
I have dipped all my corals in it. As well as bathed the fish according to humble.fish guidelines. I've never seen ick, bubble algae, or aiptasia. For quarantine treatments it's been effective for many other reefers.
Target brand seems safe.

As for algae already in the tank, I have had overall positive results. But not always permanent removal for some types of algae.
At <1mL per day / 2gal, and xenia and GSP close up for a day. Doesn't seem to do anything for algae in the short term. This stopped the spread of new algae.

On several occasions, I've used 5mL / 2gal followed by a bubble bath then rapid 90% water change. This removed all algae for a time. The GSP / xenia retracted for almost a week. It did not irritate acans or montes. Inverts lived. No fish were in that tank.

Several weeks later, what I now believe to be bryopsis, returned to two spots low on the rock near the sand. The rest of the rock has been mostly free of algae since the first big dose. I have heard Carib Sea life rock is known for its persistent algae patches. They grow long and ugly. I've since tried direct application of peroxide, scrubs, supergluing over the algae, the glue peels off and the algae is still there!, urchin, mollies. Nothing ate it. Almost 3 years of this and I decided to use fluconazole. It's now been completely gone for two weeks. No negatives yet..

I still add a few drops of H2O2 when I remember or when I stir up the water/sand or scrub the rocks. I don't see the early stage hair algae or diatoms at all. I have yet to see hair algae in my 1 year old main display. Only my Carib sea life rocks were affected by the persistent algae.

I do add a heafty amount of peroxide, a good squeeze of the bottle when filling my ATO chamber on the larger tanks. This keeps the lines clear of bio film and it seems to provide some benefit with algae prevention, without shocking the corals. I have yet to see hair algae in my main display of 1 year (knock on wood).

I don't think I've harmed the beneficial bacteria as I believe enough lives below the immediate surface of the sand and rock that it would take significant amounts of peroxide to destroy. Though the irritation to fish and inverts is more my worry. Peroxide in your eye.. not a pleasant thought. This is why I followed the big dose with water changes.
Hope this helps.. If I ever see the bryopsis again, I won't be doing any mega dose of peroxide. Rather I plan to micro dose fluconazole, which Jason Fox said he does in an old interview.
 
Dosing ozone here which has the benefit of being more potent but the downside of having bromine as a disinfection byproduct. Hypothetically peroxide dosing can achieve the same results and no byproduct but is less effective and requires more commodity. Both ozone and hydrogen peroxide are commonly used techniques in water treatment so it makes sense for use in our aquariums for water quality with moderation that is.
 
Can dosing hydrogen peroxide be more controllable than ozone? How do you measure how much ozone actually dosed?
 
Can dosing hydrogen peroxide be more controllable than ozone? How do you measure how much ozone actually dosed?
the benefits of ozone is it decays rapidly, peroxide however takes longer so there are probably more variables. I dose ozone based on orp and only dose a little bit every 3 hours using my controller.
 
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