You know it's funny. I have a concrete tank outside my front door curing. I
was looking at it the other day and noticed bubbles coming off of the algae.
The only other time I've seen something like this is in my planted aquarium
when the water became supersaturated with oxygen. This is a normal
occurrence in planted aquariums when the plants are producing so much oxygen
that no more oxygen can be absorbed into the water. So what you see is
bubbles coming off of the plant leaves.


"juliepacker" wrote in message
s.com...
Hi everyone!

I just have a quick question. There is some green/black algae growing
on the surface of my water fall. Although I do not mind this, as it
makes the cheap plastic pre-formed thing look more natural, the slime
seems to be covered in air bubbles. Is this good, bad or indifferent?

Thanks Julie
--
juliepacker
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