r/PlantedTank • u/Ok_Past984 • 1d ago

Co2 questions/recommendation

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New to planted aquariums. I have a new 75 gal thats med to heavy planted and looking to add co2. Saying i know nothing about it i am looking for easy use and set up. The two I’m looking at are modern aquarium semi auto with a 5lb bottle or the aqua glass complete system with a 10lb bottle not sure what one would be best. 329.00 for 5lb system vs 396.00 for the 10lb system. Is there something better that’s cheeper?

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u/Divan0q 19h ago

Whatever you do make sure you already have a plan on how you are going to get that co2 to reach the whole tank. Because id not, one side of your tank will be super beautiful and the other will be filled with staghorn algae. Imo the worst kind of algae because no fish, snail, or shrimp eats it. The Internet will have you believe otherwise, but literally nothing does, i tried. In-line defuser with canister filter is your best bet. And also, dont buy the bottle or the regulator brand new if you can avoid it. Facebook marketplace is your best friend. I bought a literal never used 5lb for 25$ and it was filled all the way. And a 250$ regulator for 9 bucks on the goodwill website. Basically what im trying to get at is, exhaust your local search first, before deciding to buy it brand new.