Ozone in Planted Tanks? - The Planted Tank Forum
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post #1 of 57 (permalink) Old 09-10-2011, 04:41 AM Thread Starter
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Ozone in Planted Tanks?

Is anyone on the forum using Ozone to improve water quality in freshwater? I live in China and use tap water (not potable). My ORP controller reads a fairly constant 290.

I change about 25% of the water weekly and I inject CO2 during the daytime currently controlled at PH 6.7. Dkh is 6.8. Plants are flourishing but the fish are struggling with the lower PH.

Is there a benefit for the inhabitants? What other water parameters would be affected if I added ozone?

Tank is ~400 Liters. Photoperiod is 6 hours.
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post #2 of 57 (permalink) Old 09-11-2011, 03:58 PM
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This is an interesting question. I know reefers use ozone and since I started using it in my hot tub, I hardly ever add chlorine.
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post #3 of 57 (permalink) Old 09-11-2011, 05:20 PM
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Ozone reduced organic contaminants...I think your issue is probably a combination of metal contaminants and organics. I don't really think it'll help. Ozone is something very hard to control. Too much and you kill your fish too little and it does nothing.
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post #4 of 57 (permalink) Old 09-11-2011, 10:09 PM
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You might wish to check out this link, which had a lot of detailed information about ozone systems. http://forum.simplydiscus.com/showth...Sytem-Overview
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post #5 of 57 (permalink) Old 09-12-2011, 12:08 AM
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UV sterilizer might help.


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post #6 of 57 (permalink) Old 09-12-2011, 03:11 AM
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What problem are you trying to correct? Do you know why your tap water isn't potable (i.e. what contaminants it has?) A pH of 6.7 isn't particularly low for most freshwater fish, though there are certainly exceptions.
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post #7 of 57 (permalink) Old 09-12-2011, 09:08 PM
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this article may help you understand water quality in terms of ozone or the oxygen reduction potential of your aquarium.

http://www.americanaquariumproducts....Potential.html

there are certain elements that will help with redox, and some that will hurt it.. prime helps, and uv sterilizers will also help.. turn on a UV in a tank full of organics and redox agents.. water will cloud instantly but within a day it will be nice and sparkly so to say..

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post #8 of 57 (permalink) Old 09-14-2011, 02:43 PM Thread Starter
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thanks all for your comments and advice. After following the two links it looks like maybe a little more than I want to tackle right now. I am still fine tuning the Co2 controller and ferts.

Maybe later this year? If I do....I will let you all know the result....

Right now getting ready for three weeks in the US for home leave..... Hope I still have a tank when I get back
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post #9 of 57 (permalink) Old 09-14-2011, 02:46 PM Thread Starter
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Sorry.... forgot to add. I have no idea what the contents of the water is..... No water report available here that I can find. I am limited to the data I get from test kits that I bring in with me and the PH/ORP controller.
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post #10 of 57 (permalink) Old 09-14-2011, 02:55 PM
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If your tap is non potable I would look into RODI filtration.


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post #11 of 57 (permalink) Old 09-14-2011, 09:21 PM
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RODI filtration is taxing to the water supply and expensive to start. I'm not saying its not an option but RODI always has a start up cost associated that both freshwater gurus and reefers do not like.


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post #12 of 57 (permalink) Old 09-14-2011, 09:21 PM
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I would like to know the results of the ozone additive.


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post #13 of 57 (permalink) Old 09-14-2011, 09:25 PM
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Not sure RO/DI would get me to drink water that wasn't safe to drink going in. I'd be concerned with bacterial levels and such. We are use to taking water already safe to drink and making it better.

When I reach in my tanks now my only poop concern is from the fish. lol
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post #14 of 57 (permalink) Old 09-14-2011, 09:40 PM
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i'll be honest.. tap water filtration plants use bacteria as their primary filtration method and chlorine to kill off whats left.. my tank has the same bacteria and so does yours..

I'd drink my tank water if i didn't use it to water my plants... all the bacteria is weighted since it is full and stays on surfaces.. the water will have a fertilizer/ dirt taste to it but is otherwise safe... unless u have parasites and such in ur tank or sick fish

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post #15 of 57 (permalink) Old 09-14-2011, 10:10 PM
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Couple health studies have been done in other countries that show a high level of occurrence of Salmonella in LFS and hobbyist tanks. I'm not afraid of my water but I sure wont drink it.

The OP is in China and and if officials say it's non-potable I'm going to believe them.
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