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Re: Aquatic Plants Digest V2 #585

In a message dated 97-03-18 08:20:54 EST, you write:

> For a manual system I still  believe the simplest and safest 
method to>  get >  CO2 into the tank is my trapping it under 
a dome/cap/bell  near the>  surface. >  You just need to 
experiment with the area of the dome your setup
>  requires >  and make sure you are  bubbling at a rate 
that keeps CO2 trapped under>  the >  dome.

To trap the co2 I have been using an upside down cup on the 
bottom. Should I make it so the cup is up near the surface?? 
Does it really matter?  The way I have it now is, I have the
bottle w/yeast under the tank. Using an airhose w/ an airstone
going under the tilted cup. Is this alright or should I change it??