Newby stepping into CO2. Need placement advice.

[HeavyHeart]

Hi! I just purchased a Fluval Mini Pressurized CO2 Kit to experiment with. I also purchased a CO2 checker with the color changing liquid too. I'm excited to do this!! Aquarium is 2 months old and cycled. Only has trumpet Malaysian snails keeping it running. It has dwarf hair grass everywhere and Java fern on the dragon stone. Sand has fertilized substrate underneath and mixed in somewhat. I fertilize water with aquarium coop twice a week.. Will be adding scarlet temple and a small peice of spider driftwood with Christmas moss attached later
●Should I put the co2 defuser next to the sponge filter?

 

[Andres391]

I would put it where there is flow like on a corner or close to it but not sure if I would not want my co2 to get sucked up on sponge filter then shoot out to the top surface where gas gets exchanged maybe it not a big deal but if it makes even a small difference to improve your co2 why not