I just checked again to make sure the mailman didn't ninja deliver it, but there's nothing :( He ninja delivered my heaters yesterday. I sat here waiting and worrying they wouldn't get here. In the meantime my mom was coincidentally fixing the doorbell and when she went to put it outside, tada! My heaters were already there!
Also I guess to be more clear about who is who,
Big Red/Purple: Was lethargic but perked back up, has been active and eating for the past few days.
Blue/Red: Has been active and eating
Adding their heater tomorrow when I move into my apartment for school
Floaty/Little Red: Had swim bladder issues. Gave Daphnia that he didn't eat but must have eventually because in the morning he was better. Lethargic for a while afterwards. When I added the heater yesterday he explored it and examined it. He has been off and on activity-wise since. Eating well.
Navy Blue: The one who is currently sick. Activity was also off and on throughout the week. Was eating until today. Currently floating at the top corner of the tank bein' sick :(