I tried plants, but they were dug up so often that I got frustrated and decided to buy more slate. Found it pretty cheap at a LFS.
2 Orange Zebras (mating pair)
1 Yellow Zebra
1 Golden Mbuna
1 Albino Mbuna
2 Orange Zebras (mating pair)
1 Yellow Zebra
1 Golden Mbuna
1 Albino Mbuna