Honestly, the thought of losing all the fish made me physically sick... It's my second tank and I'm slowly getting infected by the hobby... I would be an unhappy camper losing all the fish. I ran around, probably for a minute and got composed, and started observing the symptoms. Neons are so tiny that I feel they succumb quickly. I thought Oh God, Neon Tetra Disease, but that didn't match the symptoms I found online... The rest is history