H2O2 dip % ? - Page 4 - The Planted Tank Forum
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post #46 of 57 (permalink) Old 03-02-2012, 03:48 PM
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How old was the peroxide you used? turn off the light after you dose the peroxide since light can quickly break down peroxide. You don't have to do water change after dosing peroxide since it quickly convert to water and oxygen.

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post #47 of 57 (permalink) Old 03-02-2012, 08:51 PM
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ah poop, I had the light on!

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post #48 of 57 (permalink) Old 03-04-2012, 01:21 AM Thread Starter
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TIME OUT!!! Go back are read the thread H2O2 does not breach down that fast.

moonwasaloon - Was the H2O2 a fresh bottle ?

When I spot treat I can see the Hair algae melt as I inject there H2O2, so this doesn't sound right.
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post #49 of 57 (permalink) Old 03-05-2012, 03:10 AM
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I just tried spot treating my algae, what I believe is staghorn as well, with H2O2 so we will see what happens. I dosed about 70ml into my 75g tank in the affected spots and got some bubbling but no "Melting" of the algae what-so-ever. I had the filters off and waited almost an hour before turning them back on.

Hoping this will help, but if not I am upping my dose to 140ml and the waiting time to 2 hours and see if that will nuke it. My glosso is starting to get taken over as well as my java ferns. I tried this dose the same way about 3 days ago and didnt not see much change so hoping this one will do more. Def got more bubbling this time tho.

Maybe staghorn is too stubborn for the H2O2 treatment? I sure hope not!

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post #50 of 57 (permalink) Old 03-11-2012, 11:12 PM
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I feel like an idiot, but I thought I should post my experience whether or not things are said about my stupidity.

I decided today to dose H2O2 as I have been trying to rid my tank of several algae types. I thought a 10ml per gallon "bath" was my way to go. So, no I didn't read through the whole thread before I attempted this. Today is my 50% WC day. After I removed the water, I added the peroxide. Was going to let it sit for an hour, but after about 30 min I noticed my fish were coming up a lot to get air (cory and oto), and a group of them were breathing at the surface (rasbora and neon). I promptly added my prime and then refilled the tank. I had to leave and was gone for a few hours. Came home to 4 dead rasbora, one dead neon, and I have lost 2 otos. I have other otos that are almost out of the tank, sliding up and out of the tank at the water level. I have them now in my QT tank and I performed another 50% wc.

I would rather live with algae than kill my fish. So far, all of the cory are ok. They have still been coming up for air, there are bubbles in the water, tiny ones. Not sure if that is CO2 or H2O2, as my plants are pearling from the water change.

Please don't be an idiot like me

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post #51 of 57 (permalink) Old 07-13-2012, 12:10 PM Thread Starter
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tlyons01 - Don't beat yourself up too bad. There's not a member here that hasn't done something they regretted with the hobby.
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post #52 of 57 (permalink) Old 07-13-2012, 12:17 PM Thread Starter
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Lately, I've been pulling my potted plants out of my outdoor emersed tank and my Whiskey Barrel pond to treat H2O2 with a spray bottle. I give the treated pot/plant 1-3min. "sizzle" time. Then either back in the pond or in a rinse bucket then back into the emerged tank. So, far this has been very successful.

If one had like Java or Anubius in a drift wood or Rock in their tank this idea would work, better I think, than spot treatments or water column dosing.

The big CAUTION point is the DWELL TIME.

I do 3min. on Emersed Crypts, less on Submersed plants.

All new plants (Buy/Trade) get misted for a 1min. before they go into any of my tanks.
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post #53 of 57 (permalink) Old 07-13-2012, 12:26 PM
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I did 3min or there about on Anubius with a new bottle of 3% and a week later see the yellow of tissue damage on many of the leaves. Use at you're own risk as results can vary widely for odd reasons.

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post #54 of 57 (permalink) Old 07-17-2012, 03:21 AM
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Hey DogFish,
I have 4 mosses on 2x2 stainless steel mesh I was wondering how much H2O2 I should use to remove thread/hair algae and how long should I have them submerged in an external bucket for?
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post #55 of 57 (permalink) Old 10-17-2013, 09:45 AM
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I used H2O2 to try to get rid of a white fuzzy fungus on my emersed Hemianthus Callitrichoides and the only thing i got was whitered leaves and the fungus laughing at me, using a 3% H202 solution sprayed all over..

I guess H202 wont deal with fungus but is still hard on small plants :/
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post #56 of 57 (permalink) Old 12-18-2013, 06:50 PM
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I'm looking to deal with hair alge on some stem plants. They are getting too tall so will be doing a trim and replanting anyhow, so was thinking about a spray, rinse and replant.
Will a H202 spray for 1-2 min harm the plants if they are at the same time trying to re-establish roots (i.e trimmed, and being replanted).
Is the recommendation, to spray, then manually remove the hair algae, or just rinse and put it back in the tank?
thanks in advance for your advice...
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post #57 of 57 (permalink) Old 08-15-2020, 04:42 PM
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Anyone know whether food grade h202 vs non-food grade h202 matters when treating planted tank? I have BBA....also snails and shrimp. Also: should I external dip plants, spot treat in tank, or whole tank treat? For latter, i was thinking 1.5ml of 3% h202 per gallon....Thanks!
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