If its genetic, could be passed on to offspring, though from what Mark was sayin' an EBJD x EBJD spawn is likely doomed to failure. Wonder if he's seen it in any EBJD fry he's raised or has ever heard of it with EBJDs; wouldn't be the first time a deformity went hand in hand with a desirable trait.
WYite
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So many fish, so few tanks.
"In the fields of observation chance favors only the prepared mind." - Louis Pasteur