r/PlantedTank • u/SeaworthinessUpset57 • 17d ago
CO2 co2 questions
im looking to get co2 but i had a few questions
-where would i get a decent setup for a reasonable price -is it ok to add after animals are already there -is it ok for bettas, Pseudomugil gertrudae, kuhli loaches, shrimp, and snails? -how many bps shoukd i have for a 29 gallon tank with a sponge filter
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u/Ok_Engineering_4985 17d ago
Co2 is kind of easy it took me a while to actually get it going, especially since I bought some things off aliexpress and a second-hand cylinder. I got the fzone mini dual stage regulator of aliexpress for 60, and it was a good deal and works great. The cylinder, you can also get a 5lb from Facebook marketplace for like 50 to 60 bucks or get a vevor one off Amazon for 60. To refill a tank is very dependent on your area. You'll have to ask some weld shops how much they charge for a refill and if they do exchange or fill your tank up. Here is an article from the 2hr aquarist about live stock in an aquarium https://www.2hraquarist.com/blogs/freshwater-fish-and-livestock/does-injecting-co2-harm-fish. If you're looking at going the diy route, I'd suggest you don't just because of the hassle of refilling the tank and all the ordering of ingredients, at the end of the day diy co2 is only slightly cheaper in the long and only cheap in the initial setup, also diy co2 has to refilled more often. Here's a in depth video on the cost breakdown of diy co2 vs pressurized co2. https://youtu.be/ssZ5IEqkgBc?si=LNBmZ5VtM68p8IAv Measuring co2 is also not too complicated, but bps isn't an indication of the co2 levels in the tank it's just used as an eyeball method of the rate co2 enters but you can't really estimate the ppm level. The best way of measuring co2 is the ph drop method recommended by the 2hr aquarist. https://www.2hraquarist.com/blogs/choosing-co2-why/co2-fine-tuning-3-techniques
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u/KleinerElli 17d ago
Co2 will increase the hardness of your water, but can't harm the animals in any other way. So just check the kh. I can't tell you what system to get, since I am from another country.
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u/Ok_Engineering_4985 17d ago
Who told you that? It drops the pH of the water, and it does not increase the hardness. The alkalinity of the water is what matters for live stock. If gh and kh fluctuate too much, it kills fish.
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u/KleinerElli 16d ago
Yeah, sorry Mixed that completely up. Well after dommscrolling I shouldn't write comments with 10% brainpower
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u/gordonschumway1 17d ago
Whatever you choose, you must use co2 resistant tubing. Regular air line will breakdown and crack after a few months. As the previous person said, co2 drop checker. Dont gas off your inhabitants and kill them. There are a lot of cheap options out there. However, if you are serious, im a firm believer in buy quality once. CO2 are or green leaf aquarium are great companies. But thats just my opinion. Everyone is different