11-10-2009, 05:38 PM
Join Date: Jan 2004
Location: Dallas, TX
iTrader Positive Rating: 100%
| | Re: Tiny super efficient CO2 reactor
Plug up the venturi. I usually just heat it up slightly and pinch it shut.
The CO2-tubing being pinched is fine. The bubble will find its way out and that's all that matters.
There is no need for an airstone. I don't understand why people believe that using an airstone increases the efficiency of the super-duper-cheap rector. It's ultra efficient as it is, no airstone. Using an airstone will reduce or eliminate the gentle sound that the bubble makes when hitting the impeller. That may be the only reason to use an airstone. But you loose the "audio bubble counter".
There is not a single proof that turning off the CO2 at night will make a considerably better planted tank. Amano shuts off his Co2 at night and adds O2 so everybody nowadays thinks that shutting off the CO2 at night is the best thing ever. There is no need to shut off the CO2 at night. You will save some CO2 but you will introduce variations of the CO2 and pH. Takes 30 min for all the CO2 to leave the tank at night. Takes 1-3 hours to build back up in the morning. Inconsitency is enemy #1 of any planted tank. Try it and see for yourself but what's simplest is the best.