Well...I am glad my corys breed easily. I use a 30 gal tank shallow, no filter, no gravel, just broken clay pots in the tank. There are a total of 9 cats in the tank, 6 males and 3 females. I keep the temp around 70 degrees. I feed heavy, and then stop for 2 days. While the eggs are being laid, I do not feed at all. This stopps them from laying. Keep in mind you must get the eggs out and fast they will eat them. I am lucky that my well water seem to be perfect for them, never had to add anything to it. I gather the eggs and place them in a live bears net and hang it back in the tank where they where laided. After the eggs hatch I keep them there for as long as possible, placing only a bubble filter in the tank to give a slow movement to the water. Keep in mind these are really very small babies, keeping them in a small area will help them find their food. 10% water change every couple of days. This method works for me and my high fins. Took me 2 years to get the babies to live and grow. This has been hit and miss for me for a long time, but this works for me, just a thought...Glee