Hi Stuart, Mike's advice covers most everything, except one very weird trick that always used to work for me. When your water's soft, acid and peat filtered, and everything seems right but nothing happens, take two thin pieces of rock (I used thin -2cmx2cm- slate bars) and bury them. Over this, place a flat piece of thin slate on the sand. Often, the transvestitus, and other nanochromis, will get very excited about digging out a space under flat rocks. As the rock settles on the supports you've prepared, you have a cave and they have a ritual that seems to matter to them. It was a consistent trigger for both transvestitus and parilus. I know it sounds strange, and it was, but you might want to combine it with Mike's excellent advice. All I'd add is since I don't have blackworms, they do love chopped earthworms and especially whiteworms for conditioning. Good luck. The fry grow fast, so they are good for selling once you manage to get some. Gary (Montreal)