Hi everyone! I am having a slight panic attack at the moment. I came home from doing some stuff I needed to do, and checked on the new L239 plecos. I saw that they looked like they had a gold sheen to them and jumped online trying to find out if this is part of their coloration or if they have velvet. An hour later I checked on them and 1 had died! Please help! I see no other symptoms, no flashing, maybe a bit lathargic, but it is hard to tell, since they are new plecos. I did a waterchange this morning, temp was matched, I have not delt with this before and these fish where expensive and hard to find I don't want to lose anymore!