Any One Heard About This Co2 Generator?

[dingweding]

Any one heard about this CO2 generator?

http/cgi.ebay.co.uk/Elec-CO2-Generator-f...tem150087794386


Now, no need to use the CO2 bottle, regulator , glass diffuser…………

 

[Themuleous]

Yes and its crap, spend the money on a better system.

Sam

 

[shrimply]

Yes and its crap, spend the money on a better system.

Sam

Can anyone explain how they are supposed to work. I saw them and thought. That is a really good price for CO2 they must be useless. But I admit I am intrigued.

Update I found this site which is a much more expensive model. And it actually sounds alright.

The Carbo Plus
Norbert Zajac and his team of engineers and biologists have developed a device which won the 1999 German Industrial Prize for Best Technical Innovation. It consists of a regulator and a carbon sandwich which is mounted inside the aquarium.
Electrolysis frees CO2 from the carbon block. A dial allows control over the correct amount of CO2 for the aquarium - using harmless low voltage. The carbon cartridge will last about 8 weeks in a 65 gallon tank with medium carbonate hardness. And if the Carbo Plus is set on a timer to work only when the light is on, it will last up to twice as long.

But you do have to a have the big black box thing in your aquarium. Personally I would prefer a pressurised system I know I can trust.

 

[Themuleous]

But you do have to a have the big black box thing in your aquarium.

Yes you do! The carbon block reacts with the water, cant remember with what exactly but it reduces something (GH/KH? I cant remember), but it has to in order to create the CO2.

Its also hideous!

Personally I would prefer a pressurised system I know I can trust.

Me too

Sam

 

[zig]

It works by electrolysis Wiki-electrolysis as far as I know, basically it strips the Kh or carbon from your water and in the process lowers it, so in order for it to work at all you need to have a pretty decent Kh to begin with, but even with a decent Kh it still won't produce enough CO2 for our needs (highlight tank +30ppm CO2) best left alone and buy a "real" CO2 setup instead, same price anyway and less running costs long term.

 

[Themuleous]

I knew it was something like that

Sam

 

[dingweding]

so it is rubbish? not worth buying?

 

[Themuleous]

Both -> rubbish and not worth buying

Sam