The ranchu now calmed down and I put them back into the main pond. The mops with eggs were transferred into a smaller container, where they are now incubating. A lot of eggs are unfertilized, but fertilized are also present in a good number. I added a couple of drops of Methylene Blue to prevent the fungus outbreak and a couple of airstones to keep constant supply of oxygen. The water temperature is at 72 F (22 C) and if everything goes fine the fish will hatch in 4 to 4 1/2 days.