Your water will always contain co2 but it will be lower in concentration if
you aerate. Do a test. Measure your KH and your PH after your fountains and
waterfalls have been off for a day and then use these to calculate your CO2
with the chart at
http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm . Then turn your
fountains and waterfall on for a day, retest and recompare to the chart.
You'll see your Co2 level will have dropped.

Sam

"John Rutz" wrote in message
...


Sam Hopkins wrote:
John,

Algae is a strange thing isn't it? Just because you aerate your
water
doesn't mean there's no CO2 (or carbon) in it, some still exists. Nor
does
it mean that with aeration you wont have algae. I would think that your
pond
has very low CO2 and this area of heavy current would be the place where
the
CO2 is the highest concentration because it would be delivered to or
flow by
the algae at a high speed. Sort of the same effect as sucking hot coffee
through a straw, the heat gets concentrated to an area. At other areas
the
current is slower and thus less carbon is delivered to a pinpoint area.

Sam

ah then the high concetration of CO2 in our water doesnt make it into my
pond?, somewhere between th
pump and pond (direct 1 in line) I loose the co2


John Rutz
Z5 New Mexico

before you criticise someone
walk a mile in thier shoes
that way when you criticise them
your a mile away and have thier shoes

see my pond at:

http://www.fuerjefe.com