I lost my 3 inch Dickson Gold 3 days ago :-( I made the mistake of rinsing the sponge media in my AquaClear HOB too much. I performed the water change in the evening and when I woke up in the morning he was dead. None of my other juvies were effected but I did a 80% water change that morning and added Stability to the tank and have been for the last 3 days. Will do so for at least 5 more days. Sorry for your loss SHP