Just last week I began pairing a 1000g spinnerblast male x 1500g enchi female 3 days on 3 days off -- both of which I got a month ago. I'm 75% sure I saw them locking up last week, which is exciting. But the SB hasn't eaten for me yet. I am guessing its because he has been breeding, even before I got him and he's gone off eating.
I know when the males are not eating during breeding you need to watch their weight. Question is, how much weight is an acceptable weight loss? I think he's only lost 20g since I got him.