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Inline co2

lil-lynx

Member
Joined
23 Jan 2010
Messages
499
Location
Staines
Hello i have just installed a bouy inline co2 diffuser on the outlet of my Tetratec 1200. I was just wondering how do I measure the co2 ?.
 
Hi, use CO2 drop checker, try Google around or should be also somewhere on forum.
 
Thanks much help :). Merry Christmas to you :) Hope you have an amazing day. !
 
Or you can use a PH Controler. :twisted:

Sorry for the quality off the picture and the beautiful wire management. After hollydays I will make some arrangements in that mess.

fyep35.jpg
 
I wouldn't use a ph controller they can cause unstable co2 levels which can induce algae
Matt
 
Re:

mdhardy01 said:
I wouldn't use a ph controller they can cause unstable co2 levels which can induce algae
Matt

Sorry, but you're rong. A pH controler maintain a stable level of co2, or in case of changing KH it will be adjusted automaticaly. A continous flow of co2 induce a very high fluctuation day/night. Plants consume co2 in the day and release co2 in the night.

Read more about that.
 
scifficus said:
mdhardy01 said:
I wouldn't use a ph controller they can cause unstable co2 levels which can induce algae
Matt

Sorry, but you're rong. A pH controler maintain a stable level of co2, or in case of changing KH it will be adjusted automaticaly. A continous flow of co2 induce a very high fluctuation day/night. Plants consume co2 in the day and release co2 in the night.

Read more about that.
I think you'll find that a ph controller will only control a stable ph not necessarily a stable co2 content because there are other factors in the tank that can either raise or lower ph ( substrates / wood ect ) that can leach acids therefore reducing the ph and turning off the co2 when the co2 level isn't optimal
That is why we use a dc to check co2 levels and not ph controllers
Even then the best method is to read the tank and inhabitants plants and fish are healthy then co2 is ok fish gasping co2 is too high plants unhealthy and co2 related algae co2 too low
Matt


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Yes, I'am well aware of that. But how much can shift the ph in a short period ( 2 to 6 hours ) the humic acids from woods and the rest of chemicals to induce a high fluctuation in co2?

I've done a little experiment, co2 was on direct injection at a 1,5 bbs/s and the controler was only in "measure" mod. The fertilisation metod is daily in a small amount, with the help from tests. Results, the ph oscilate from 6,45 in the mornig to 6,85 at 9 pm when the light turn off. And the visual co2 test show that too. So......

Which way is corect?

SN. Now the rate of co2 is apx 1,8 bbs/s in a 180 liters ( 47 gallons ) aquarium and the time of injection is in the day time half hour on and an hour and half +- 15 min off, in the night is 10-15 min on and apx 2 hours and half off. The visual co2 test show a constant light green. In the test i use the fluid indicator and a 4kh water ( osmose and Baking Soda ).

I have 2 years + in that hobby with a lot of documentation and experimenting, do it with a lot of plants and configurations.
 
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