plastic holding tank ?

[mytank90]

i am going to help someone out this weekend with her tank and want to know if i could go buy a large plastic tote from canadian tire to hold fish in for a few days? her tank just starting to leak so want to put fish into a large plastic bucket for a few days till its resealed.we where going put heater and a small pump in tote to keep stuff alive but not sure if i sould use a air stone to?thanks