I don't know about palmy water, Bulls water is fine though!
I do know that there have been some crapy livebearers coming in off the wholesale list though, and one person in a store recently said he wouldn't buy any livebearers off the list because they were all dying so might be some indication..
If you want descent guppies pm Jewelz on here shes awesome and has some lovely neon blue guppies she will help you out with im sure, and someone sells snakeskins on trademe.
Good luck and if your calling through Bulls and want to say hi see some africans let me know