DIY CO2 questions - Page 3 - The Planted Tank Forum
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post #31 of 60 (permalink) Old 11-14-2012, 06:13 AM
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The picture works fine;

I would go over and check all the connections with some soapy water (drip the soapy water over the connections). If there are any bubbles that you can see forming, then you will know there is a leak.

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post #32 of 60 (permalink) Old 11-14-2012, 06:23 AM
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Yea sounds like you have a leak. The best way I've found to seal the caps is to drill a small hole, get some rigid plastic tubing that the airline will fit over (either rigid tubing, or you could mutilate a barbed 3 way). Put the fitting in the hole, and surround it with hot glue on both the inside and outside of the cap. You can even pull it through the hole a bit to draw in the glue. Just don't get too crazy on the inside of the cap or it wont thread down. Also make sure your using an intermediate bottle in line(full of water) to scrub the air, otherwise you'll get some funky stuff growing in your tank... I like running a mininmum of 2 bottles, and I like the ~1 gallon juice jugs (the kind with the built in handle).

As for diffusion, one idea I've used before: a collection bell. doesn't have to be fancy, it can be difficult to keep it from flipping over when full of gas, the surface area exposed to the water is more important than the volume and if you can get some current past it you'll get great diffusion. Right now I'm using a chopstick diffuser(free) with a collection bell collar threaded on to the CO2 airline- made out of a clear plastic lid about 1" in diameter. It's got my drop checker in the green zone, in a tank with poor flow on the opposite corner of a 20L.
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post #33 of 60 (permalink) Old 11-14-2012, 03:36 PM
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Thanks for the input. I am only running 1 bottle. I have been using the redsea turbo co2 biosystem and the waterpump went bad so I just put the co2 output hose in the intake of my filter.
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post #34 of 60 (permalink) Old 11-14-2012, 08:01 PM Thread Starter
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Looks like i might have a leak as well but i lack a bubble counter, what should i do to create one of those?


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post #35 of 60 (permalink) Old 11-15-2012, 04:51 AM
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Looks like i might have a leak as well but i lack a bubble counter, what should i do to create one of those?
Are you going to use a separator bottle? (one that has the lining from the 2 liter bottles connected to it, and this separator bottle connects to the actual tank)

I'm still trying to figure the exact specifics out, but it looks like in the seperator bottle, there is water in it and the air lining from the 2 liters goes into it. This will create bubbles in the water and can double as a bubble counter.

see pic in link
How many DIY CO2 bottles for a tank....
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post #36 of 60 (permalink) Old 11-15-2012, 08:34 PM Thread Starter
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Are you going to use a separator bottle? (one that has the lining from the 2 liter bottles connected to it, and this separator bottle connects to the actual tank)

I'm still trying to figure the exact specifics out, but it looks like in the seperator bottle, there is water in it and the air lining from the 2 liters goes into it. This will create bubbles in the water and can double as a bubble counter.

see pic in link
How many DIY CO2 bottles for a tank....
Thats what im currently doing on my generator, looks like it is actually producing CO2 and its just leaking


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post #37 of 60 (permalink) Old 11-20-2012, 12:40 AM Thread Starter
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So i fixed my problem, definatley was a leak, now the only thing is whenever i have it on it starts to gas my fish, first i notice that they all congregate at the top and start gulping air, thats when i take it out, i have an airstone going and it is producing soooooooo many bubbles, and all i have is one co2 reactor hooked up


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post #38 of 60 (permalink) Old 11-20-2012, 05:30 AM
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Here is where a drop checker will be extremely useful. I doubt that you get enough CO2 with that to gas the fish in that size tank. If you have a drop checker, set up correctly, and you are only getting blue green indicator solution, you can be sure you are not gassing the fish, so you will have the courage to increase the amount of CO2 you are adding, possibly by using a more efficient diffuser type. When I first started with CO2 I thought I was gassing my fish, too, but I wasn't anywhere near doing so, as I learned later.

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post #39 of 60 (permalink) Old 11-20-2012, 03:55 PM
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1/2 tsp yeast, 1/2 tsp baking soda, in 2 liters of water

so tsp = Table spoon or tea spoon ?
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post #40 of 60 (permalink) Old 11-20-2012, 07:57 PM Thread Starter
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1/2 tsp yeast, 1/2 tsp baking soda, in 2 liters of water

so tsp = Table spoon or tea spoon ?
Teaspoon


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post #41 of 60 (permalink) Old 11-20-2012, 08:00 PM Thread Starter
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Here is where a drop checker will be extremely useful. I doubt that you get enough CO2 with that to gas the fish in that size tank. If you have a drop checker, set up correctly, and you are only getting blue green indicator solution, you can be sure you are not gassing the fish, so you will have the courage to increase the amount of CO2 you are adding, possibly by using a more efficient diffuser type. When I first started with CO2 I thought I was gassing my fish, too, but I wasn't anywhere near doing so, as I learned later.
And as in drop checker do you mean an extra bottle filled with water where the hose from the bottle is submerged under the water then the tubing that goes into the tank goes into the top of the bottle and not all the way inato the water? because i have that setup running, i have heard that some of the Alcohol (i think its alcohol) from the actual mixture that is created will get into the tank if you dont have that setup

Also sorry for the long explanations, i just dont want to do it wrong, ive got wayyyyy to much money invested in the tanks livestock to take large risks


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Last edited by ADJAquariums; 11-20-2012 at 09:45 PM. Reason: mas
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post #42 of 60 (permalink) Old 11-20-2012, 09:10 PM
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I have a DIY CO2 system currently set up on my heavily planted 60 gal. I rotate 3 bottles typically changing one out about every 2 weeks, meaning my formula is generating CO2 effectively for approximately 5 weeks. In the beginning I added the first bottle. I waited a week and added the second bottle. After my growth increased and my drop checker indicated that additional co2 was required I added the 3rd bottle to the rotation. My formula is...
~1 tsp bakers yeast
2 cups sugar
2 Tsp Molasses
1 tsp baking soda
1/4 cup whey protein
3 drops dechlorinator (sp?)
For a 2 liter bottle, I have used this formula in 2 1 liter bottles on smaller systems with different rotational needs.

Yeast can be activated and produce CO2 both anaerobic and aerobic. We are trying to utilize the anaerobic process. So the less exposure to air the better. What I do is mix everything except the yeast in warm water. To ensure that everything is dissolved. I then add it to the bottle and add cold to Luke warm water to fill to a little below the top of the label. At that time I put the yeast with some Luke water. I squeeze the bottle so that the mixture raises to just below the top. Then I add the yeast water mix quickly screw the cap on the bottle, while it is still squeezed. Clap the tubing exiting the top until it is added to the system. You need to shake the bottle either before or after you connect it to the system, while still squeezed. This will produce a surge of CO2 which will more than expand the bottle.

Diffusing can be effectively achieved by placing the end of the CO2 tubing in a large glass applesauce jar and propping it between the side of the aquarium and the outlet of a power head. You can use a smaller jar if necessary. The jar may have to be angled so that no bubbles escape. I am currently using a ISTA max reactor which I purchased online for $10. I have it on the out going side of my canister right before my spray bar. It works great!

I have aeration on a timer turning on 30 min before the lights go out and turning off 30 mins before they come on. The CO2 runs continuously.

Sorry to be so lengthy, and there are a million ways that are all right. This is just what works for me.
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post #43 of 60 (permalink) Old 11-21-2012, 02:33 AM
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Quote:
Originally Posted by ADJAquariums View Post
And as in drop checker do you mean an extra bottle filled with water where the hose from the bottle is submerged under the water then the tubing that goes into the tank goes into the top of the bottle and not all the way inato the water? because i have that setup running, i have heard that some of the Alcohol (i think its alcohol) from the actual mixture that is created will get into the tank if you dont have that setup

Also sorry for the long explanations, i just dont want to do it wrong, ive got wayyyyy to much money invested in the tanks livestock to take large risks
http://www.instructables.com/id/CO2-Drop-checker/
http://www.ukaps.org/drop-checker.htm

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post #44 of 60 (permalink) Old 11-21-2012, 07:59 PM Thread Starter
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Extremely helpful links! thanks, looks like i need to go out and buy some necessary parts for the checker


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post #45 of 60 (permalink) Old 01-28-2013, 10:27 PM Thread Starter
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Alright Bringing this Bad Boy back for a Third time, again help is needed. I have decided to start this up again. And i want to do it Right. Last time it just didn't go well so i just sort of quit. The first thing i would like to know is what is one of the best options for a DIY Diffuser? I don't want anything rediculously complicated but something that works well. I have contimplated hooking up the Airline tubing to one of my HOB filters and diffusing it that way.


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