Earthen means made of dirt/soil/loam or other mixes. Yes, raising the dam does increase the depth. However, just piling more dirt isn't as fool proof as it sounds. The new stuff works best if mixed with the present soil and WELL compacted.
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.
Without a sense of urgency, Nothing ever gets done.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
| 
