Sad New.

[Lajos_Detari]

Could the veggies have had any pesticides on them?

It's possible if you don't watch the veggies.

I heard of people feeding their ducklings with leftover veggies taken from the market without washing them.
All the ducklings died..
So, I guess the veggies must have very high pesticides.

Remember to rinse all your veggies at least 2-3 times before cooking.
Rinse them with running tap water if possible.

 

[KevinZ]

It turns out there's Gas Pocket Under The Gravel. I just try to Stir The Gravel again and there is bubble.