I have seen these green balls and I think they look pretty cool, like little aquatic shurbs if you will. I looked them up on plantgeek and they dont saw a whole lot about them, does anyone have them... are they easy to care for Im setting up a tank and will have 3.2wpg and CO2 enjected it will be a 20long and the lighting is powercompact. I am going to be using flourish as my fert and clay gravel.