Several of my large plants in the Raft system laid over, turned brown, and died. The aerators are bubbling away but …
When I examined them I found that the roots are brown, covered in something.
Perhaps, I have some Algae but this is not green and looks different.
The edge of my rafts have a green splash line on them, which I assume is Algee. The roots of the little plants are white or clear, not brown.
It’s as if when the roots get long enough to touch the bottom of the 9″ deep water, then the brown grows up the roots and suffocates them.
The bottom of my black PVC pond liner has a very thin layer of stuff on it. It is not enough I can grab any in my hand to see. It seems to be the same color.
So what’s killing my plant?
To be resolved ….