How Are OB Zebra Mbunas Made?

[RTCfan86]

I can’t seem to find a solid answer to this question. Is this a mutation, or are they perhaps hybrids between zebras and another type of Mbuna?

 

[DJRansome]

Metriaclima estherae OB occur naturally in the Lake.

 

[danotaylor]

This naturally occurring OB's genetics are the bedrock of hybrid OB production in the aquarium trade, and one of the reasons OB fish tend to be more aggressive than their non-OB counterparts.

 

[RTCfan86]

Thank you both for the info!