My son won 4 at the fair tonight. He's so proud. He's planning to get a nice aquarium for them, but for now we have a temporary one seeing as we got home late tonight. But anyways, do we have to put a conditioner in the aquarium water before we put the fish in? I dont have any tonight. I can get some tomorrow, but i would feel bad with them staying a bag all night and need to know if its really necessary. Thanks!