This is a video of the 40-breeder aquarium where I house a breeding harem of the West African cichlid P. brevirostris (one male, five females and a few juveniles) that I collected in Gabon last February. The dithers are a school of redcap moon tetras (Bathyaethiops breushegemi) and a couple yellow-tail Congo tetras (Hemigrammopetersius caudalis). The giant danio is in there to condition to spawn. If I leave her in with her male they will scatter eggs every day!
This tank is decorated with bog wood and oak leaves. The cichlids need a low pH to spawn, so I am using straight RO water for changes and dropping the pH with an acid buffer to about pH 5.5. There are several ‘burrito’ caves for spawning, which are roomy on the inside with a small opening. I stuff the caves with long-fiber sphagnum moss which lowers the pH in the cave another half point or so. The females seem to like the plants matter in the cave, and when given a choice of an empty cave they always use one with moss.
Trying these fish as a harem is a new idea. Until about a month ago I was keeping each female in her own tank and shuffling the male between them (he appears in the video, but only briefly… the king is very shy). As single pairs they have spawned several times, and I have enough fry on hand that I can now experiment a bit. No spawns yet, but as you will see in the video the male is paired at the moment. He chases all the other females.