Went to Darwin today and got myself an Anubias barteri or better known as "Nana" (actually nana is the dwarf version of this plant). Hardy aquatic plant from Africa, just second to algae in terms of hardiness.
The spawn seems to be really interested in the plant the moment I introduce it to the tanks. They are swimming around it and resting on and beneath it's leaves. It seems as though they have calm down. Well for some strange reasons I am actually pretty fond of this plant, maybe I've been staring at an empty tank for too long.