My landlord came to do an inspection on our place. So I had to hide my fish so we wouldn't lose our deposit. I had to empty his tank and make it look dry. So we put my dude Carlos in a cooler for a day. He has his water pretty nasty already in the cooler so I filled his tank back up with tap water and treated it. I also have dumped some of his water in the cooler in. Can I just put him back in his tank??