Maybe the reason why there is not that many breeders
Is because these guys are extremely sensitive. They do not ship well. You really should have a quarantine tank to put them into for about two full weeks and medicate them for that period. After shipping if there is any Ick or anything else in your water if you just put them in your tank with no Quarantine they will most likely contract what ever you have in your tank. They are very sensitive to Osmotic changes, stress, changes in KH, GH, temperature, and other stuff. What usually happens is the person purchasing them tends to not follow the instructions of the breeders, does not medicate them for a while in a quarantine tank and then does not acclimate them properly. When the fish get sick and die they blame the breeders. Therefore breeders are sick and tired of breeding them and selling them and it is a big loss!