Poor stock?
One died from natural causes - ammonia - another dies - more ammonia - mass wipe out.
just a possibility.
i hope i am not hijacking the thread here, but i was wondering what the water parameters should be (im expecting babies soon) ?
Not a bad all around listing Vaega, but I will suggest that most people here are more interested in common livebearers than fish in general. For common livebearers, the pH should be higher than in your listing. I would suggest that a pH of 7.0 to 8.0 is more appropriate for most common livebearers. The 6.5 number should be reserved to the South American fish from the Amazon basin and similar environments. Very few common livebearers are found in such waters.