About 2 weeks ago I replaced my male krib that passed away. Diane, my female, is thrilled. She is showing off and her colors are so bright. They have a little breeding cave that she has claimed. Now Jack, the male, will go into her cave and spit the gravel out. There is a huge pile of it outside the cave. I watched him working at this for about 20 minutes. Why? Is this a sign they are getting ready to breed? I hope they do, what can I do to encourage them? They are in a 29 with 2 gold dojos, a bolivian ram, and a bristlenose pleco. Everyone gets along now, but if the kribs breed will they hurt the others? I can rehome everyone if I need to. There is space in my 60 at the moment. Any advice would be welcome. I really want baby kribs.....