EVoyager31 Posted December 19, 2021 Share Posted December 19, 2021 Going to be setting up c02 in my 75g heavily planted tank. I've done much research but most of everything online is very generalized when it comes to diffuser size and how many drips/minute I will need. Diffuser size: What size should I look for? I'm looking at glass/ceramic diffusers online, and I know I will likely need something a little larger but WHAT SIZE? mm, inches, WHAT. I understand that the bubbles should be very fine so they can diffuse properly before reaching the surface, but does the size of the diffuser affect this? Drops/minute: How do I measure how much c02 I need? I understand that I can get a c02 drop checker and that the liquid will change colors but do I just play with the c02 output until the liquid turns green or is there something else I should be doing to measure this? If its only going to be on while the light is on, I want to make sure I have enough c02 for them to use. Also, where would be proper placement of the diffuser inside the tank? Everything I read just says it needs to be somewhere with high flow so it can distribute around the tank but towards the bottom so the bubbles can diffuse. I have a spray bar that is fairly long, so I figure I could just have it low in the tank under that. Only thing is that I have it angled so the flow of the water doesn't disturb my newish (not many roots yet) stem plants. Would this placement work anyway? I really want to make the right choices with this...plants are expensive and I NEED some success 🙂 Link to comment Share on other sites More sharing options...
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