In line co2 diffusers

[Swampman1]

Does anyone have experience with in line co2 diffusers? Are they better than the ones in the aquarium? It would seem like it. Thanks

 

[Rusty_Shackleford22 137]

In conjunction with a canister filter, yes they are better in my opinion.
You get more contact time with the water and better distribution of CO² especially with a spray bar.

 

[Tomsfish2 45]

I used Istas in my sump of my 18g.
I ran two in series since I was trying to install a large amount.

Ista CO2 External Reactor

Designed by Ista, this External CO2 Reactor is ideal to utilize in aquarium setups where carbon dioxide is supplemented. Reactors use agitation to thoroughly mix aquarium water with the CO2 that you are adding, to ensure the gas is evenly distributed.The reliable, sturdy design works externally...

kensfish.com

Just got to make sure you use proper size hose to avoid leaks.