"Dances With Ferrets" wrote in message
m...
In the fishroom that I help manage... I had a customer come in tonight
who is serious about his plants, which is cool, but he is doing
something a bit strange that I've never heard of before... he insists
that it promotes better CO2 absorption into the tank water.....

The Nutrafin Natural CO2 system (yeast canister type)... he has the
bubble counter mounted directly under his canister filter intake so
that the bubbles that reach the top of the bubble counter go directly
up the pipe and into the canister filter. Forgive me if this question
sounds ignorant to those of you who are more advanced; but couldn't
this hinder the growth of beneficial aerobic bacteria in his filter as
well as possibly promote the growth of anaerobic bacteria?

Do tell me all the possible benefits or pitfalls of doing this... I
honestly didn't know what to tell him.


many people including myself inject their CO2 directly into the intake of a
canister filter, in my case a Fluval 404. The C02 has no negative effects on
the filter bacteria. I would assume if he is using the Nutrafin system that
he has a small tank of 10-20 gallons and wonder what type of canister filter
he is using. If his tank is larger than this then you should be telling him
that he will not get enough CO2 out of the Nutrafin system to be of much
use.

Rick