cableguy69846
Member
OK. A couple of you asked for a thread on how to make a DIY yeast CO2 reactor. So here goes. Now, this is not my design, I used a design I had seen floating around the planted tank forums and tweeked it to my own desire. It is pretty simple and straight forward.
This design is pretty basic. Here is what you will need:
2x 2 liter bottles with caps
1 gatorade bottle, or another small bottle with a larger cap
airline tubing
airline "T" connector
check valve
airstone or some type of similar device
yeast
sugar
Here are the tools you will need:
drill with bit
scissors
pliars, needle nose work best
First you want to make sure all your bottles are clean. You can use soap, but don't use a ton, and make sure you rinse them out really well. Don't want that to end up in the tank.
Next, drill a hole in each of the 2 liter bottle caps. For this, I used a bit that fit snugly in the airline to make the holes.
And used pliars to hold the cap.
This is what it will look like with the hole.
After you drill the hole, you want to cut the end of your airline at an angle and pull it through the hole about an inch or so. This is where the needle nose pliars come in handy.
Repeat the above steps for the second bottle.
After you are done with that, you want to drill 2 holes in the lid to the gatorade bottle. This bottle is going to act as a bubble counter.
Connect both 2liter bottles with the "T" connector and then run your airline into the gatorade bottle. It should go all the way to the bottom of the bottle.
The other hole in the gatorade bottle is going to be the line to the tank. You want to add your check valve in that line, and your air stone (or other diffuser) to that line.
The line from the mix bottles is on the right, the line to the tank is on the left.
Fill the gatorade bottle 3/4 with water and close it up. Fill your 2liter bottles with water about 3 or 4 inches from the cap. You don't want any of the sugar yeast mix getting in the tank.
Add yeast and sugar to both 2 liter bottles and shake. It helps to have another cap that will fit both 2liter bottles for this. As for yeast and sugar, I use 1 cup of sugar and 1 teaspoon of yeast. After all that you should be good to go. And it should look like this.
It will take a little bit for the gas to build up enough to start going into the tank. Just be patient, it will work.
Easy as that. If you have any questions, feel free to ask.
This design is pretty basic. Here is what you will need:
2x 2 liter bottles with caps
1 gatorade bottle, or another small bottle with a larger cap
airline tubing
airline "T" connector
check valve
airstone or some type of similar device
yeast
sugar
Here are the tools you will need:
drill with bit
scissors
pliars, needle nose work best
First you want to make sure all your bottles are clean. You can use soap, but don't use a ton, and make sure you rinse them out really well. Don't want that to end up in the tank.
Next, drill a hole in each of the 2 liter bottle caps. For this, I used a bit that fit snugly in the airline to make the holes.
And used pliars to hold the cap.
This is what it will look like with the hole.
After you drill the hole, you want to cut the end of your airline at an angle and pull it through the hole about an inch or so. This is where the needle nose pliars come in handy.
Repeat the above steps for the second bottle.
After you are done with that, you want to drill 2 holes in the lid to the gatorade bottle. This bottle is going to act as a bubble counter.
Connect both 2liter bottles with the "T" connector and then run your airline into the gatorade bottle. It should go all the way to the bottom of the bottle.
The other hole in the gatorade bottle is going to be the line to the tank. You want to add your check valve in that line, and your air stone (or other diffuser) to that line.
The line from the mix bottles is on the right, the line to the tank is on the left.
Fill the gatorade bottle 3/4 with water and close it up. Fill your 2liter bottles with water about 3 or 4 inches from the cap. You don't want any of the sugar yeast mix getting in the tank.
Add yeast and sugar to both 2 liter bottles and shake. It helps to have another cap that will fit both 2liter bottles for this. As for yeast and sugar, I use 1 cup of sugar and 1 teaspoon of yeast. After all that you should be good to go. And it should look like this.
It will take a little bit for the gas to build up enough to start going into the tank. Just be patient, it will work.
Easy as that. If you have any questions, feel free to ask.
