My Osc. clowns spawn like clockwork, problem is the nests develop in about 9 days, water is 80 degrees. on the morning of the 9th day the eggs have silver tips, (eyes), but by the evening of the 9th day the clowns have cleaned the rock in prep for the next spawn which is 12 days from previous spawn. they lay on rock in the tank that isn't removable. should I up temp to get the eggs in 8 days? try to get them to spawn on removeable items? if I introduce new items to the tank how long of a spawn disruption time wise should I expect vs. chance they will choose the new site? they are laying huge nests but clean the site before they hatch the last day.