Here's my sparsely planted tank, designed to mimic a slow-moving West African river, filled with five 2" Hemichromis lifalili and one 6.5" Polypterus palmas polli, one 7" female Polypterus senegalus and one 8.5" male albino Polypterus senegalus. Sorry for the less-than-satisfactory pics by the way. These jewels are possibly the most colourful fish I've ever had, and the pics don't do them justice, really.