Dang, now out of the blue I find another Shubunkin dead on bottom. Only symptom was a little shyness the day before. They are all three acting shier now, even my biggest survivor who I have grown very fond of.
Now I suspect I will lose them all, after all.
Perhaps the cycling minnows need to be removed. Likely they're harboring parasites (would entail removing all the gravel, rocks etc from the tub so I can get them, then a huge water change to clear up the mess that will make). I have never experienced loss of goldfish like this before and it's heartbreaking. Just read on Solid Gold that the site owner has something nasty suddenly killing off all her stock after keeping and breeding for years. (Very different symptoms there, though.) Ugh.
Thoughts?
:- (