They are genetic train wrecks that result in an insane amount of deformities and are very difficult to breed out of a line. The excess fins cause strains on the body, after several generations the body of that line becomes too weak to support the fins and they can often have issues swimming. Accompanied by spoon head and hunch back traits.
Who am I? Well I am a Junior Member of the International Betta Congress and a breeder of white HMPKs, red dragon HMPKs, black/red dragon HMPKs, metallic multi HMPKs, blue masked HMPKs, and now multi color HMs. Soon to add black HMs. I will be showing in New Breeder class in fall of 2012.