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co2

This is a discussion on co2 within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Thanks! That's what i was thinking i just wanted confirmation. :)...

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Old 03-02-2007, 02:39 PM   #21
 
THanks

Thanks! That's what i was thinking i just wanted confirmation. :)
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Old 03-02-2007, 05:58 PM   #22
 
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I got a ph of 6.8 and a kh of 5 which works out to be about 24 ppm of co2. I guess I need to adjust.

I got another question....I put the air tube from the co2 into the intake of my powerhead and am letting it blow out that way but it does not get caught under the plant leaves the bubbles just go to the top of the aquarium and pop....I am thinking this is not what it is needing to be doing. Can I take the co2 output hose and drill a hole in my intake to my canister filter and install it in that. Would that work or do I need to try to get it to work with the powerhead?

Sorry this is so jumbled just thoughts in my head but I dont know what I am doing so I ramble my thoughts.
Thanks for any info
Gary
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Old 03-02-2007, 08:46 PM   #23
 
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Use an airstone to diffuse the CO2 into the intake of the powerhead or the canister filter. An inline reactor will work a lot better but I have never used one so I am not the best to give advcie on them short of they will work about the best of any option to diffuse CO2.
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Old 03-02-2007, 10:01 PM   #24
 
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So would this type of reactor work well or is there another type that would be better?
Thanks
Gary

http://cgi.ebay.com/Red-Sea-CO2-Reac...QQcmdZViewItem
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Old 03-02-2007, 10:22 PM   #25
 
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I don't have any experience with reactors. I only used DIY into my intake of AC HOB. I have heard some talk about them but nothing good about them. They supposedly don't last very long and are a lot more difficult to work with than DIY and pressurized.

Hopefully someone who knows about them can chime in because I can't help with the fancy factory reactors.

An inline is easy to construct and is supposed to one of the best ones to use. I will see if I can find the plans I have seen.
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Old 03-10-2007, 05:00 PM   #26
 
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I have the co2 setup and have for about a week and a half...my first reading were the 6.8ph and 5kh....I just checked them and the ph is up to 7.2 and I dont really know why. I thought it would lower with the co2 running so I guess I need to turn up the co2 drip a bit. I had it at just over a bubble a second and that is not enough. My kh is still 5 which I guess is good. To diffuse the co2 I have an airstone under the intake of my canister filter. What I need to know is if the activated carbon in the canister messing with the co2. Do I need the carbon in the filter or are there other recommended media to put in the canister? Also why would the ph go up over the week or so I have had this running instead of down. I have quite a few plants now and cf lighting at about 220 watts of all 6700k bulbs. It is a 90 gallon as stated before. What will help lower the ph. I have also noticed that there is fuzzy green algea growing on some of the plants...what caused this?
Sorry for the rambling just trying to get this thing going right since I have a bit of money in the plants now.
Thanks
Gary
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Old 03-14-2007, 08:20 PM   #27
 
Quote:
Originally Posted by fish_4_all
Use an airstone to diffuse the CO2 into the intake of the powerhead or the canister filter. An inline reactor will work a lot better but I have never used one so I am not the best to give advcie on them short of they will work about the best of any option to diffuse CO2.
correct observation.

Reaction chambers are the best but they are large- so for aesthetic reason pollinating reactors are becoming more popular.
There are a number of factors that are innvolved in reducing the ph level of an aquarium. Adding CO2 will reduce the ph yes, but its effect is determined by the hardness of the water measured in kH and gH. 5 is quite high for a planted aquarium you want to be at 3-4kH.
I suspect the reason why you are not experiencing a difference in performance because of the poor method of diffusing. You want a reactor with a media inside that will break the CO2 bubbles up- this will then aid the mixing process, it needs to absorbed by the water. A reaction chamber has 2 inlets, one for CO2 one for water taken from the outlet of your filter, the outflow mixes with the CO2 and so water mixed with high concerntrations of CO2 are added to the aquarium.
Unfortunately the reactor i speak of has been discontinued from seras product line- it has been replaced by this http://www.quantumfish.co.uk/listman...ngs/l0139.html which is no where near as good.

As for the green algae on your plants, that is happening for 2 reasons, your water is not clean enough, and this means you are not providing a suitable environment for you plants, and you are not feeding your plants- i would guess that your water is pretty flat- the pours are not open on your plants which causes this green algae, you need mineral salt in the aquarium- there are freshwater salts available on the market, add one teaspoon per 5 gallon when you carry out a water change.

Well thats my advice, hope it all works out- but you need to sort out the reactor, 1 per second is more than adequate. also turn your gas off at night- but you knew to do that anyway right? :)
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