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Thread: DIY Co2 for shrimp tank

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    With DIY, you probably won't run into any issues with excessive CO2 production. It should be safe to leave it going 24/7. Also, it is rather bothersome to disconnect and reconnect your generators to the CO2 line on a daily basis unless you are really diligent about it.

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    Ok thanks for all your help really appreciate it! I'm going to see how long this mixture lasts. I did not add any baking soda but next time will be sure to add a pinch to see the difference.

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    above is the image of my DIY CO2. Cheers!

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    Hey thanks nice setup what size tank are you using it on? and are gas seperators not needed? or are they just used to be more safe?

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    Hey well im ready to set the DIY CO2 system onto my 29 gal shrimp tank! I will be using 2, 2L soda bottles, 2 check valves, and gas seperator which will go to my tank. Over the past couple days I've noticed this same setup but with only 1, 2L soda bottle has been doing quite well on my 10 gal (test). One thing I want to know before I set it up on my 29 gal is if 2, 2L soda bottles will be to much? Or will i be fine. It will also be running 24/7 so should i face any problems? Or will I be safe? Thanks
    Last edited by Robert; 30th Jul 2006 at 07:37 PM.

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    I am using it on a 2 feet CRS tank. Point to note is that you have want to place the container at a higher level then your tank to prevent backflow.
    Last edited by Robert; 31st Jul 2006 at 06:06 PM.

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    2 2L bottles should still be okay on a 29G tank. To be safe though, start with one and then add the 2nd when you know the mixture is going strong. Watch your fish and shrimp over the next few hours. If they start heading toward the surface, remove the 2nd.

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    Right now i have just 1, 2L bottle seems to be doing fine i see my riccia on top pearling a bit so am happy with that. I will eventually add the second. Dzylim you said to place bottles above my tank? right now i have them below my tank i dont seem to have any problems with backflow as of right now..and it would be harder to raise it since there is nothing to stand it on beside the tank i guess i should build something like a little stand if i do face backflow problems.
    Mike

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    As long as you have a check valve in place, you shouldn't have too many issues with backflow.

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    The backflow will happen as your CO2 starts to lose its pressure. So before that happens, wither you use a check valve, which i do not like because mine got stuck pretty badly, or put the bottle above the tank's water level.

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