Is CO2 worth it for beginners?

[RiverOtter]

For real, a good diffuser makes all the difference. And if you're gonna do it, might as well get a timer for the CO2 to match your light cycle. Saves gas and keeps things steady.

[steelcity]

If you go DIY, keep an eye on the pH swings. Yeast methods can be inconsistent, so test daily until you get a feel for it. A drop checker helps too.

Yep, pH swings are no joke. Almost lost my shrimp once because I wasn't paying attention.