Ok, next question...
I want a "centerpiece" plant for a 15" tall 30-gallon. So, I'd like it to grow to about 8" tall but NO more than 12" tall.
This must be a low-tech plant with nearly no requirements. I don't want it to require fertilizer. It must live with a daylight spectrum T8 fluorescent bulb. No CO2
. Not toxic to community fish (if any plants are toxic... I wasn't sure). No special substrate required - only small-medium gravel. I'm willing to do some occasional trimming.
If such a plant doesn't exist, then so be it, but I'm not willing (at this time) to attempt something difficult (by my definition).