Yann Fulliquet

his is a little summary of what was observed during an accidental case of crossbreeding which involved two undescribed species of the genus Hypancistrus. I was keeping 5 Hypancistrus sp. L 066 along with 4 Hypancistrus sp. L 136. Both males and females were present for both species. Several caves were placed in the tank hoping to successfully breed both.

I actually never thought of any possible crossbreeding between the two, because their colour patterns are very different. With L 066, the overall colouration is white with a lot of curved black lines. With L 136, the overall colouration is black with small white to yellowish spots all over the body. In both species the belly is white. Their adult size is also different. L 066 can grow to 15cm; they usually become mature at around 10cm. L 136 grows to 10cm, and usually becomes mature at around 6-7cm. Everything went on pretty ...

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