dosing hydrogen peroxide?
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Old 07-13-2011, 03:36 PM   #1
evan.m
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dosing hydrogen peroxide?


I have some isolated algae on my nana petite, not sure if its bga or bba. I want to dose directly with a syringe. I get that I have to turn filters off, let the water settle, then dose. Do I need to mix a solution, if so what parts to water? And how long should I wait to turn the filter back on? Thanks
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Old 07-13-2011, 03:55 PM   #2
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If its bba I've had luck spot dosing excell to the algae. After one or two doses it turns white in a day or so.
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Old 07-13-2011, 04:48 PM   #3
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Hydrogen peroxide is already in dosable form. it is usually 3% of the stuff with the rest water, so just take a eyedropper and start spot treating right out of the bottle.
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Old 07-13-2011, 06:17 PM   #4
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Is Hydrogen Peroxide OK in a tank with fish?
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Old 07-13-2011, 07:28 PM   #5
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Hydrogen peroxide is safe -- just don't squirt it directly onto a fish or shrimp.

I've used it to treat algae in my hairgrass carpet -- so, lots and lots of it at once (200 mL in a 50 gal aquarium = 4mL/gallon) with no ill effects, even when livestock have immediately come over to the still-fizzing algae.
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Old 07-13-2011, 09:16 PM   #6
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There 's always at least a small risk to the fauna if left in the tank.
H202 for BBA?
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Old 07-14-2011, 12:09 AM   #7
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Quote:
Originally Posted by audioaficionado View Post
There 's always at least a small risk to the fauna if left in the tank.
H202 for BBA?
There's really no "leaving" H2O2 in the tank. Light and enzymes will break it down into oxygen and water. Once you turn the filters on it will dilute it all and it will rapidly degrade.
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Old 07-14-2011, 03:37 AM   #8
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Good info, thanks a lot
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Old 07-14-2011, 05:58 AM   #9
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Quote:
Originally Posted by Postal Penguin View Post
There's really no "leaving" H2O2 in the tank. Light and enzymes will break it down into oxygen and water. Once you turn the filters on it will dilute it all and it will rapidly degrade.
And yet sometimes some fish die anyway (see linked thread). It's a risk that should be considered and managed.
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Old 07-14-2011, 09:09 AM   #10
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It has a lot in common with popular American light beers in that it is as close to water as you can get without it actually being water.
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Old 07-14-2011, 05:45 PM   #11
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Quote:
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it has a lot in common with popular american light beers in that it is as close to water as you can get without it actually being water.

rofl!
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Old 07-14-2011, 08:42 PM   #12
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i use a combo of 1ml/g excel and 2ml/g of peroxide to treat bad infestations. seems to work better on stubborn BBA. some fish are in fact sensitive to excel or h2o2 such as cory habrosus (killed many many of them), but most are ok.
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Old 07-15-2011, 07:58 AM   #13
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I have used hydrogen peroxide to kill BBA. It works pretty well. I killed my albino ancistrus when I dosed my tank, though. I did some research online, after the fact, and found out that they seem to be very susceptible to dieing from it. None of my other fish were affected, though.
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Old 07-15-2011, 08:35 AM   #14
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Quote:
Originally Posted by dhavoc View Post
i use a combo of 1ml/g excel and 2ml/g of peroxide to treat bad infestations. seems to work better on stubborn BBA. some fish are in fact sensitive to excel or h2o2 such as cory habrosus (killed many many of them), but most are ok.
At those levels, each of these will absolutely kill off any of the more sensitive fish and plants in a tank But your call.
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Old 07-15-2011, 09:04 AM   #15
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2ml/g of peroxide is way less than what many others dose it. the only plant i have found that doesnt like it at all is hornwort (literally melts overnight), but so far its the only one that seems affected by it. 1ml/g of excel is about the max dosage, but anyting less is not effective. i only use the combo in my larger tanks (120g), where dosing with a syringe is just not doable. for smaller tanks, i spot treat wth the max amount being the above doses based on tank size. i do account for gravel etc, and reduce accordingly.

now i know i am supposed to treat the root cause of the algae, then i wont have to kill it with chemicals. but my root cause is week or longer trips with no one to keep up the ferts and monitor the tanks which are heavily stocked and planted (wife will only feed fish). i travel 4-6 times a year for bussiness so it is a re-ocurring event.
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