My stumps are now under water. So short of paying someone to bring an excavator and tear up all my lawn there is not much i can do. I will avoid adding any more oaks though. Would pines be safer? i have a ton of pine trees at my disposal. I was planning on dropping a few small oaks in a corner of the pond to create structure from the very bottom all the way up the water column. But now hearing this I won't risk the additional oaks.
