luckily bichirs are very hardy I had 2x 12" ropefish and a 12" lungfish that got lost in the mail for 4 days then when the mailman dropped the box off he didn't ring the bell and I discovered the box an hour later I was pissed it was 104 outside and I had a sign on the door telling him to ring the doorbell. Amazingly they were alive and when I opened the bag the smell almost knocked me over. I think any other fish wouldn't of made it