> Nice to see another APD member here, Dionigi! Your post reminded >me of an interesting parallel I hadn't mentioned: I have noticed an >alarming tendencey in MALE kribs (I have in mind the whole Pelvicachromis >genus here) to develop post spawn pop-eye. I can't help but think that >there is something going on here that is common to both situations. > > Andrew > In an earlier posting someone had some questions regarding the susceptibility of males versus females. Just as food for thought, it's fairly widely known that human males appear to be more susceptible to certain medical conditions than the human females. High cholesterol is an indicator in human males of the potential for heart attacks but most people don't know that the statistical numbers do not apply to pre-menopausal women. There are numerous other examples of this type of thing in humans. Why would we not expect similar types of differences in other organisms? Dionigi had an excellent set of questions in his posting. I noticed the problem in pandurinis that were wild-caught. They sat for a short time in the fish dealers tanks and were all fed black worms (what we call tubifex, although inaccurately in California). I have two major sources for my apistogrammas, and both like to feed these worms. I stopped feeding worms to most of my fish some years ago when another hobbyist who had quite a bit of expertise pointed out that the mysterious deaths that he saw in many of his apistos seemed to have dropped in frequency when he ceased to use the California black worms to feed them. I am growing a small quantity of pandurini babies and am waiting to see if this mysterious disease will catch up with them.