[RandomMan]

What's the best way to input CO2 in-line with a Eheim 2211 filter?

 

[TLE041]

I use this diffuser on my 2211 (but purchased from eBay for much cheaper).

It seems to work well. The drop checker stays green at 1 bubble every 2 seconds (tank is a Mini-M).

 

[RandomMan]

Thanks!

 

[cardgenius]

Check out these types. I use one and it works great.
http://theshrimplab.com/store/?p=276

 

[RainSong]

I just switched from using an in-line atomizer (like the one above) to a Rex Grigg reactor that I put together yesterday (very simple). I did not like the fizzy 7-up look of the tank with all the tiny bubbles from the atomizer.... but this might just be a personal thing.

 

[RandomMan]

Any suggestions on a pre-built reactor? I don't have the tools/space to make my own and most reviews seem to say the pre-built ones suck.

 

[RainSong]

I believe Rex Grigg sells prebuilt CO2 reactors for a very reasonable price. See http://www.rexgrigg.com/diy-reactor.htm

 

[RandomMan]

After doing a little googling, I think I'll pass on buying from Rex Grigg. Seems like there's a good chance I'll never get what I order.

Any other suggestions as to where to get one?

 

[CuLan]

The Cerges style reactor from Craigthor.
http://www.plantedtank.net/forums/s...tration-overflow-co2-reactor.html#post1492372