co2 bell diffuser

zin

zin

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Dec 16, 2003
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i use a co2 bell diffuser(co2 gets trapped under a bell shaped plastic piece that sits underwater

the bell stays full of co2 all the time, but for some reason co2 doesnt seem to diffuse, even after i converted my hob to not disturb the water surface much..

can yeast produce something besides co2 after awhile? my jello diy has been going for about a month.
 
I would use something other than a bell reactor... I've tried several methods and I found that the bell diffusor was the absolute worst performer. I got better results having the CO2 bubble from a wooden airstone.

If you want better performance from your bell reactor, try position water flow so that it passes under the opening of the bell.

As far as I know, DIY CO2 generators don't produce any other gas other than CO2... I've had one jello generator work for 1.5 months once. Course now, they've all been replace with a CO2 tank.

HTH
-Richer
 
ill probably go pick up a better diffuser or maybe i can direct some flow from the hob and make a super filter that will be 10x more complicated then it needs to be :)

could i maybe put the output from the co2 text to the output pump in the hob? so it gets pushed throught the flow spliter?
 
If you don't mind hearing bubbles get grinded up by your pump, put your CO2 output where the intake for your filter is. The CO2 bubbles will get sucked up by your pump, get chopped up into smaller bubbles by the pump, and pushed out via your filter's output. I'm pretty sure that will probably give you better results.

HTH
-Richer
 
Also what about the water surface, is it ok if it moves slightly but doesnt break? or should i aim my filter output down a little?
 
Originally posted by Richer
If you don't mind hearing bubbles get grinded up by your pump, put your CO2 output where the intake for your filter is. The CO2 bubbles will get sucked up by your pump, get chopped up into smaller bubbles by the pump, and pushed out via your filter's output. I'm pretty sure that will probably give you better results.

HTH
-Richer
Click to expand...

Great advice! That's the easiest and most troublefree method I've found so far that offers good results.

Once I made a bell diffuser out of a small plastic OSI food container, two suction cups glued on the side holding it upsidedown in the current. It was neigh worthless. Since then I've drilled a small hole in the side of the secondary intake tube on my powerfilters, and run the norprene tubing from the CO2 bottle/check valve. Cut the tip of the hosing at an angle to be inserted into the intake tube to prevent an absolute vaccum and you're set. I've never had a problem with Gatorade/Powerade bottles collapsing with this method as they are well reinforced. Been using it on most of the fishroom tanks with several types of filters and having great success.

Cheers,
Raithan O. Ellis

P.S. Forgot to mention... I even use this on a 10g with an AC Mini not 4 feet from my bedside, don't notice a thing at night. Then again, the fishroom sounds like a torrent 20 feet away and I still don't notice that either. :D
 
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Slight surface movement shouldn't be a problem. My 70gallon tank has two filters running on it, and the water that the two filters output collide slightly with each other, which causes small waves to form near the surface of the water. It hasn't affected the CO2 levels in my tank.

-Richer
 
What size is your tank? I messed around many different diffusion techniques on my 10 gallon. I used the bell, airstone, I had the output from the CO2 line going into the intake of my filter but the noise drove me nuts. I eventually just got the Hagen Ladder (they do sell them separately)

I am really happy with the ladder, it diffuses the CO2 more than well enough for my 10 gallon and I don't have to worry about siphons, and explosions etc.

P.S. Make sure you have a check valve on your setup.

Detox
 
CO2 diffuser

I have a diffuser with a small pond pump driving water through it and am very pleased. However it's so full of gunk I can't see in it anymore. Maybe it needs a bleach bath...
 
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