ZRDR Co2 Generator Systems, All you need to know | 4 Month Review.
25:03
DIY Co2 Generator vs Pressurized Co2 | Which is CHEAPER?
19:08
Don't Get Duped! Watch This Before You Buy Aquarium CO2!
11:28
WARNING for CO2 users | I GASSED my whole TANK!
4:23
Are DIY or grow shop CO₂ Generators any good?
25:55
DIY CO2 from AMAZON | Good\Bad? | ZRDR CO2 Generator.
32:10
No CO2, No Fertz, No Filter, No Water Change
19:36
DIY CO2 FROM CITRIC ACID AND BAKING SODA - COLOMBO CO2 GENERATOR
28:30