I was out working on the pond today, trying to get it back in shape after a period of neglect. Yesterday, I used a horse stall rake to scoop out the FA etc. Today I was scooping out the thick layer of decaying leaves and humus that is about 6-8 inches deep, I noticed that when I scooped the rack down into the humus layer that bubbles would come to the surface. I would imagine it is trapped gas from the deacying leaves. My questions are:
1. What type of gas would this be?
2. Is it toxic to the fish
3. Would I be better just to leave it alone
4. Could this cause the fish not to spawn-white crappie- no little ones this year.
Thanks for taking a look, I really enjoy this forum.
