Sorry I have not kept this one up with all the changes but this will be the last post. I haven't seen a cardinal in over a month. They say the best thing to do to a shrimp tank is to leave it alone. I think I messed with it too much. I did several rescapes, changed remineralizer several times, turned heater up and down a few times, messed with light intervals and in turn reduced algae they fed on. The tank was any thing except consistent. At one time I had berried cardinals but never saw babies. Today I started to remove rocks and plants preparing to remove the neos, no sign of cardinals. The one success in this tank were the snails, Lots of babies. I'll move the rabbit snails to a planted 29 with tap water. My tap is higher ph than the salty and they should enjoy the extra space to roam. The plan is to move the neos to their own tank, move Tigers in and add crs to see what happens.