DIY CO2 Diffuser Placement Question
Quick question, I just set up a new 20g high with the DIY citric acid/baking soda CO2 kit set up. This is my first try with CO2 and I did my homework but I’m just curious where the best placement of the diffuser would be? Right now I have it as low to the substrate as I can on one side of the tank with the HOB filter output flowing pretty close. It seems to be pushing the bubbles around pretty well right now so no complaints. My question is I just watched a video of someone putting the diffuser directly into the HOB filter materials area and letting it spread the bubbles that way through the tank. Has anyone else tried that/is this a better way to spread CO2 bubbles?