Placement Of Co2 Diffuser?

[Squid]

Title says it all really.. Where is the best place for the diffuser? Near the filter intake, far from it, a nice quiet spot? im not sure

I have an eheim external filter with spray bar and vertical intake if that helps?

Squid

 

[MoreCoffee]

Title says it all really.. Where is the best place for the diffuser? Near the filter intake, far from it, a nice quiet spot? im not sure

I have an eheim external filter with spray bar and vertical intake if that helps?

Squid

I wouldn't place it near the filter intake - There's no point in sucking your Co2 rich water straight out of the tank and giving it a trip through your filter, when it's the plants that need it.
Normally it's best to put it in an area of good water flow, so that the CO2 gets evenly distributed around the tank. That way all your plants will get access to Co2 and you'll probably get a higher saturation, meaning you'll save on gas in the long run.

I think alot also depends on what type of diffuser you have.

If you are using a glass/ceramic diffuser to create a mist or stream of micro bubbles then you want it somewhere with a decent water flow, like near the filter outflow. If you have a Nutrafin type bubble ladder then it's not as critical to have it near the outflow, but you still want some decent water circulation to distribute the CO2.

Al

 

[Daz CPFC]

Title says it all really.. Where is the best place for the diffuser? Near the filter intake, far from it, a nice quiet spot? im not sure

I have an eheim external filter with spray bar and vertical intake if that helps?

Squid

I wouldn't place it near the filter intake

But dont some people hook it up direct to the filter (by having a CO2 chamber things) as it then get distributed once it comes out of the filter??

 

[excaliborg]

I don't even use a co2 diffuser, I cut a small hole in my Eheim external intake strainer, fed the co2 tube directly in there so the bubbles go straight up the intake and into the filter. The water swishing around in the filter diffuses the co2, and as such 100% absorption is achieved as no bubbles ever return back to the tank. This is only with one yeast mix canister though, but still pushing 0.5bps.

 

[Squid]

Thanks everyone...

Slightly conflicting advice.. any more comments would be gratefully received..

Cheers
Squid

 

[Dave Spencer]

You could always try placing it in my tank. I need a spare.

Is it a ceramic disc diffuser? I have placed mine adjacent to my vertical spray bar, which gives me CO2 bubbles circulating throughout the tank.

 

[excaliborg]

Thanks everyone...

Slightly conflicting advice.. any more comments would be gratefully received..

Cheers
Squid

Basically, place the diffuser where ever there is water movement as the longer it takes for the bubbles to reach the water surface, the longer they are in contact with the water so should diffuse more than travelling straight to the surface.

 

[Squid]

You could always try placing it in my tank. I need a spare.

hehehe

Is it a ceramic disc diffuser? I have placed mine adjacent to my vertical spray bar, which gives me CO2 bubbles circulating throughout the tank.

Well.. i have a rather naff sochting bit of kit at the moment with a bell diffuser, but I am currently deciding on what i would like to put in in addition to this to this.. i am deciding between the easy option of getting a hagen nutrafin kit, or... a DIY bottle of pop, sugar, yeast, some tubing and perhaps something like the glass spio diffuser from aquaessentials.com.

Cheers
Squid