anarobic bacteria bubbles....

[wetmanNY]

Dangerdoll, what used to happen IME was that a few stray bubbles fropm the airline would collect under the plate, find their way through a vent and rise through the gravel from time to time. Try lifting the airstone half an inch and see if that cures the burps.

BTW, I still think that the gentle bubble-driven convection through the undisturbed gravel, as you're doing it, is the best way to use UGF.

 

[Dangerdoll]

Originally posted by wetmanNY
Dangerdoll, what used to happen IME was that a few stray bubbles fropm the airline would collect under the plate, find their way through a vent and rise through the gravel from time to time. Try lifting the airstone half an inch and see if that cures the burps.

ok, I will give that a shot and see how it goes....for now I'll keep the UGF in place and let you know how it goes...

BTW, I still think that the gentle bubble-driven convection through the undisturbed gravel, as you're doing it, is the best way to use UGF.

you mean as I'm doing it with the stones to the bottom of the tubes? (with this, all of a sudden I feel like a newbie....after 20+ years )

 

[wetmanNY]

I was thinking as you're doing it, instead of powerheads and constant disturbance scouring free-flow areas in the gravel, which then leaves other areas with all but no flow... etc...

 

[Dangerdoll]

ok, I've raised the stones just a bit and will see how that goes. I must admit though, everything seems fairly stable since the big disaster but with this, I will keep an eye on the bubbles. Thanks for the advice...