help with homemade co2 injector

[ballinhawaiian]

Hi all,
I am going to make a homemade CO2 injector out of a 2 liter bottle, yeast, sugar and water with a tube going into my filter intake. I have a question though: How far down into the mixture of yeast, water, and sugar does the tubing go? Does it even go into the mixture at all? I am going to seal the tube into the cap tonight and cut it when ever I get a reply from some more knowledgeable peeps. I need as many responses as possible til tomorrow. Thanks for your time, good night and good luck!!!!!

 

[dougall]

It doesn't go into the mixture at all, if it did, the pressure would build above the liquid in the bottle, and force the mixture through the airline into your tank.

I normally have the tubing no more than 1/2" insure the bottle.

 

[Mgamer20o0]

mine was about a inch in. as long as it doesnt come off the cap it will be ok. as long as the sealant holds it could be as little as 1/3 inch.

 

[podheadx]

dont even let the liquid mixture get within 3 inches from the air line tube, even then the mixture will some times froth and get yeast into your tank, so don't fill it past the point where the bottle tapers

 

[Needeles]

Pretty much what they said above. You need it no further than an inch into the 2 Liter bottle. If you put it in the mixture the gas will not be able to excape the bottle and the bottle may blow up on you. Keep it high enough that you can shake the bottle alittle every few days without the liquid getting into the tubing.

 

[ballinhawaiian]

Thanks for the responses,
I am going to try this DIY CO2 injector but not until I get some more test kits in order to make sure that my fish don't die. I also will have to get another tube and bottle to ensure that there is no overflow of the mixture into my tank. I'm probably a couple of weeks away from making and using the DIY in my aquarium. I like the plant setup and they seem to be growing, eh, ok.... for now, but I mostly care about the fish . The more I read on these posts, the more knowledge I get and the more I find out that I only know the basics for adding anything to my tank. Thank god for the knowledge that comes with experience!!!!!!

 

[TwoTankAmin]

Do not put the co2 tubing into your filter's intake, you risk sucking the mixture out of the bottle that way. Place the output near enough for the intake to suck in the co2 bubbles as they emerge from the tubing but not to suck directly from the tubing.