You know, It didn't occur to me that water lilies get huge lol. I would LOVE some duck weed actually. I think it would be the perfect substitute for rooted plants. And zoidberg would love munching on it I'm sure.

I used to have kribs and rams in a tank together actually! Kribs aren't that great, but I LOVED my ram (only one survived). They're sensitive, but they have awesome attitude. I kept him with tetras. He would "school" with them and then suddenly chase them away. Lots of fun to watch lol.