Besides the fact that two 2" fish will overstock such a tiny tank, white clouds are schooling fish and need to be kept in groups of 6+. They are almost as active as danios, and should never, EVER be kept in a tank this small. I'm sick and tired of seeing white clouds in 2 gallons at the NSLFS, and would hate for this to become a trend.
How big is a 1 gallon tank?
unluckly i think i've seen smaller tanks with a betta or a goldfish