01-17-2007, 08:21 AM
| || | You actually have a choice whether you like to operate it or not.:) Obviously, high lighting and CO2 when combined makes plants grow at a very fast rate but this also makes them used up all nutrients fast which is why you have to dose the ferts more often. Also more expensive than a low-tech where you don't deal with CO2 at all other than just dosing ferts with the plants fluorishing. Low-tech is mostly for plants that are undemanding like the Elodea densa, Javan fern, Javan moss, etc.
Originally Posted by ttiger72
At what point would I have to start CO2?
Be careful when dosing CO2. A high level will eventually kill the fish in a few hours. In this case, I usually do a big water change and switch on the airpumps to powerful mode. It hasn't happened since last year though.:)
The choice is up to you whether you like to see lots of plants grow at a fast rate or not.:) Fast growth or not, it doesn't matter.:) Your plants will still fluorish and grow with or without CO2 injection.:)