Do you use aged tap water for them? I have heard of water chemistry changing and additional chemicals being added municipally and killing fish. Especially if the tap water isn't aged or properly dechlorinated/dechloramined. I am not questioning your level of care and expertise with them. I just have had my tap water quality change with the seasons before. I am just hoping it isn't the Stress Coat because that is a major issue for everyone then. I am scared because I use it occasionally. I am really sorry for your loss. I think the Goonchs are amazing fish.
Sent from my Nexus 4 using MonsterAquariaNetwork App
Sent from my Nexus 4 using MonsterAquariaNetwork App