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vinimack720 · 06-01-2006, 09:52 PM

i have a DIY co2 system on my tank and it didnt cost anything close to $20. you just need a bottle about 2 liters big(you can use a soda bottle, but i used one of those large gatorade bottles because they are more sturdy and less likely to explode/suck water out of my tank.) then i just drilled a hole in the lid, put some aquarium tubing in it, siliconed it in place and let it dry. then all you need is to set up your mixture. I just take a cup of warm water(not too hot) and disolve 1/2 teaspoon of yeast and a teaspoon of sugar in it and let it sit for about 20 minutes(you should see some bubbles commin to the top). Then i put about a little more then a cup of sugar in the gatorade bottle, poor the yeast mixture in, and fill it up with water so that there is about 3 inches of space at the top. then just put the lid on, shake it up, and you should have a steady stream of bubbles of co2 in a few hours.

06-01-2006, 09:52 PM	#5
vinimack720 Member Join Date: Apr 2006 Location: Kansas City, MO Age: 19 Posts: 83	i have a DIY co2 system on my tank and it didnt cost anything close to $20. you just need a bottle about 2 liters big(you can use a soda bottle, but i used one of those large gatorade bottles because they are more sturdy and less likely to explode/suck water out of my tank.) then i just drilled a hole in the lid, put some aquarium tubing in it, siliconed it in place and let it dry. then all you need is to set up your mixture. I just take a cup of warm water(not too hot) and disolve 1/2 teaspoon of yeast and a teaspoon of sugar in it and let it sit for about 20 minutes(you should see some bubbles commin to the top). Then i put about a little more then a cup of sugar in the gatorade bottle, poor the yeast mixture in, and fill it up with water so that there is about 3 inches of space at the top. then just put the lid on, shake it up, and you should have a steady stream of bubbles of co2 in a few hours.