i have just got 6 new leopard danios for my unheated tank. they live with 1 female paradise fish and 2 weather loaches. it may seem silly to get excited about danios, as i know they are regarded as beginner/common fish, but i can't help but love them. i have kept zebra danios before and i wanted some more cos i missed my old ones! they are always moving and excitable in the tank and i like the feeding frenzies! i think they are very under-rated.