At the home of a farmer who is doing a lot of backyard agriculture. On his own he has figured out how to raise this what appears to be an amphibious fish. Locally known as snake head fish (in Thai). It is apparently a delicacy and quite expensive. He's raising it in tanks but pulled a few out the  tankd for us to see.  They seemed quite happy to just sit on the ground.  Is it a mudskipper? Someone must know. It was strange looking in any case. I  was pretty impressed though that this farmer had just thought to get some from local fisherman and start raising them himself. The advantage is that they don't need much water, or frequent change of water which reduces management issues.