I can't believe I amasking this but ....

[MaddEnemy]

I just got the Eheim 2128 Pro.

Does this create any oxygen for the fish as it filters or is just a filter?

If it deos create Oxygen, is it enough?

 

[heresmike]

I don't have any experience with that particular filter, but I have other canister filters, and don't use any additional source of oxygen. If the filter output disturbs the water surface, that will help to oxygenate the water. I think you should be OK with just the filter.

 

[yhbae]

Unless if you are overstocking your tank, the fact that air meets the surface of water is sufficient for all the gas exchange, including O2 and CO2. I wouldn't worry about your filter generating additional surface disturbance.

What is your stocking level like?

 

[MaddEnemy]

Unless if you are overstocking your tank, the fact that air meets the surface of water is sufficient for all the gas exchange, including O2 and CO2. I wouldn't worry about your filter generating additional surface disturbance.

What is your stocking level like?

Well I have a glass top that will not have any opening except for small one for hose filter to run through and I also will have a wood cabinet top.


I am still putting it together and waiting for thing to arrive, should start cycling middle next week.

How much space should be between the water and the top of the aquarium? 1 inch, 2 inchs?

 

[yhbae]

Well, my covered tanks don't have much spaces on the opening cover - small areas where the wire of the heater enters, and also around where the power filter resides.

As for the water level, I fill it up just enough that I cannot see the water leve from the front. So I guess that's about 1 inch off from the top of the tank.

I'd say my tank is well stocked, and I never had any O2 related issues, so far...