Thanks for the replies, the problem is indeed a roots rot issue due to lack of oxygen. After investigating further, I realized that there is an increase in the algae build up on the net underneath the board, which is limiting the water/air flower to the roots.
Have changed the net since, and the new net has a bigger hole so as similar issue won't happen again. Will post up the pictures soon
I experimented with floating net pots in my pond last summer with little success. My guess is I wasn't getting enough exchange of water around the roots. That and I the fish were eating the roots.
Maybe you could add airstones by the roots in the rafts? Not necessarily aerate the whole pond but the growing area.
Knowledge comes from books and classes...Wisdom comes from surviving mistakes not taught in either.
Reply With Quote
