oxygen

Hi guys, I'm new to here and i don't have much experience in fish management. I installed my 6 gallon tank 2 day's ago. In my tank i have 4 guppy's and 2 platy's. unlike other tanks my tank is buried in soil, cemented on it's sides and bottom. Now i wan't your precious suggestion's and...

Hi guys, I've just redone my tank to add plants and junk, but my questions is, Im assuming I need to take the oxygen bubbler out because the plants need CO2 not oxygen, and they will provide oxygen for the fish themselves. But I'm thinking I need to provide CO2 for the plants? how does that...