"John D. Misrahi" <[Only registered users see links. ]> wrote:
The only big danger in using a CO2 system on a fish tank is pH
fluctuation. Too much CO2 can kill the fish directly or by lowering
the pH too far, so when first adding CO2 to a tank, you have to
carefully measure your pH regularly.
A CO2 system is usually put on a fish tank for full time operation.
Hobbyists who have the money to purchase their CO2 in tanks rather
than growing it via yeast will usually have pH controllers that
continuously monitor the tank pH and adjust the flow of CO2 to keep it
steady at some preset level.
William Penrose <[Only registered users see links. ]> wrote in message news:<[Only registered users see links. ]>. ..
What other gases are produced by fermentation, other than CO2? I've
read a lot, especially on this newsgroup, about DIY CO2
supplementation and there's never been any mention about other,
possibly harmful gases.
I use a Dennerle CO2 system. It comes with a bottle that contains some
kind of sugar gel. All you do is add warm water and break open a
capsule of what must be yeast. It's supposed to last about a month and
then you're supposed to buy another bottle with the gel in it costing
about £4 or £5. But after reading the posts on this group I do my own
mixture of sugar and yeast and it works just as well. Saves me money.
But now I'm kind of concerned that toxins may be getting into the
water. The only purification in my system is that the CO2 is bubbled
through a small bottle of water outside the tank before it reaches the
v effective helter-skelter apparatus for diffusion inside the tank.
Small quantities of other gases may be produced, but its nothing to
worry about. Many of the aquatic plant "pros" (Karen Randall, etc.)
recommend the yeast method of CO2 production. I have used it myself
and have had no problems.
[Only registered users see links. ] (unclebenjy) wrote in message news:<firstname.lastname@example.org. com>...