Just curious if this happens to everyone? I started a zoa cave with 15 different zoa frags 3 months ago. So far some are thriving (purple monsters, pearl jams, aoi, blondies,), some haven't changed (all others), and 3 have died (picachu, mary jane, cobalt). My 13.5 gallon tank has been stable and thriving with other duncans, ricordias, toadstool, chalices, micromusa. Just thought I would ask if losing 3 zoa frags is pretty normal out of 15 or something to be worried about (they shriveled gradually over a couple weeks)? I've heard some are harder to keep than others.