Davy wrote:

This morning the blanket weed has come back again. I think what happened
it that the strong wind and rain dislodged the gas bubbles, that were
buoying
up the blanket weed, so it sank. Since then it has produced more gas
bubbles and risen to the surface again.
So is blanket weed an oxygenator?

Absolutely. On a good sunny day, you'll see it filled with bubbles.
--
derek
- Unless otherwise noted, I speak for myself, not rec.ponds.moderated
moderators.