1 hr is not long at all. And 30 g is ample water fpr that amount of time.
I suppose 2 fish would use alot more oxygen... ... perhaps the fish did not fast for long enough begore hand also..
Hope the orino os back to full colour?
Did u get another water tester?
No my dumb ass just forgot you had to add the second drops for ammonia lol. The Orino is doing great I think he may just be sad cause his buddy is gone that he's been with his entire life. And yeah 1 hour, 30 gallons, 2 air bubblers ( one on each end) and they didn't make it an hour. I don't get it. I've never lost a fish in transit til now I feel like there's something I could have done different but in reality I don't think there was , just one of those freak things