Fishless Cycle At 85 Degrees How Air Power Needed

[pdludbrooke]

I am fishless cycling at 85 degrees f, I don't have any way to get the oxygen in to the water only the venturi on my Fluval u2 filter is that good enough ? I do have a high powered power head with a venturi on it, when I put it in the tank the amount of air getting in to the water is huge it causes a bit of a whirl pool, so what would you advise as the best to use is the u2 ok on its own, many thanks for all your help, from Paul

 

[Xraymark]

As long as the surface is agitated O2 will get in. Point the filter outlet up to alow this to happen.

 

[CezzaXV]

Xraymark is fine. As long as the filter is keeping the water surface moving, there will be plenty of oxygen in the water.