Why has the output on my new CO2 set diminished even after changing cylinders?
We recommend replacing the diffuser, as the ceramic disc has a life expectancy of 3-6 months and will subsequently offer reduced performance.
What bubble count should I set when using a Fluval CO2 system?
To maximize the lifespan of your CO2 cylinder, we suggest a bubble count of approximately one bubble every 2-4 seconds. This should deliver adequate CO2 in moderately planted tanks.
I installed a CO2 system a few days ago and the cylinder is already empty. Is this normal?
No. At the rate of a bubble every few seconds, the cylinder should last approximately 2-3 weeks. It is possible some CO2 escaped while adjusting the unit or attaching the CO2 cylinder. Verify if the regulator is leaking at the cylinder connection: it may simply require further tightening. To inspect for other possible leaks, remove the unit from the aquarium and place it entirely underwater: if a leak exists, you will see it by the bubbles being produced.