During the fall and winter, I had eggs twice in an all Heckel tank..I also had three smaller Heckel's being wormed, which I suspect are all females..one croaked; no eggs since then..I figure she was the egg layer..I'm still trying to clean the other two up to little avail, but by a domestic female tagging and fighting with them, I still suspect them to be female..I have a pair both doing pre spawn activity, but other than cleaning, nothing else yet...That's all I have that's current, and observed...Gary