CO2 and HoB filter

[Ohad]

I wish I had a set with these fancy lily pipes.

But I got a HOB. The internet does not give me a straight answer.

Right now, the CO2 is on the side of the filter close to it; this is  based on a video I saw from "the secret history in your aquarium."

But the internet is all over with that. Can CO2 and HoB filters work together, or is it a waste of time? If so, what is the best way?

[Jack.of.all.aquariums]

You might lose a little efficiency but you can run CO2 with a HOB no problem. I always shoot to maximize how long the bubbles stay in the water. If there is flow going in downward anywhere that would be the most ideal spot for co2. I have also ran the CO2 so it bubbled into the flow coming from the filter so it mixes a bit more rather than just bubbling straight to the top.

[knee]

They will work together. I ran a tank with co2, canister filter and an HOB full of filter floss. 

The HOB return was a bit under the surface to avoid too much co2 loss.

[Ohad]

For now, I posed it on the other side of the filter. I think that for my filter, it makes a bit more sense as it is pretty intense and sucks the water from the other side. This is also what aqua pro recommended somewhere.

 

And I also filled the water up, so the coming out of the filter does not pushes the surface too much 

Let's see what happens 

 

Thank you! 

Edited February 11, 2023 by Ohad