Humpback guppies

guppymonkey

AC Members
Sep 5, 2009
51
0
6
Michigan
So I have been looking up the different diseases that plague my guppies, and one thing I have never been able to solve is the Humpback Disease.:wall:
Info that I have found is that it is a vitamin D deficiency. They need more light?
http://www.guppies.com/index.php?option=com_content&task=view&id=23&Itemid=36
Currently they sit in front of a window and have a T8 standard sun bulb.
Only some of the fish get it.:confused:
pH is at 8 or so, hard water, weekly water changes, all other test are normal or very low.
Only other fish are kuhli loaches and glass shrimp. gravel substrate, back filter, live plants ( java moss, anubias nana, najas grass, crypt.

Any suggestions?:help:
 
Could it be a genetic thing. Guppies are pretty heavily inbred...

that page you linked too sounded a bit, um, odd....the ability to manufacture Vitamin D from sunlight? That I am pretty sure is confined to land animals, particularly mammals. Not a biochemist so I can't say for sure. But if everything they listed would "kill guppies" I would think the species would be long extinct by now. :)
 
In my experience, it's genetic. Guppies came along that had spinal deformities, and the guppies they gave birth to in turn had the same deformities, whereas normally formed guppies gave birth to the same.
 
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