Following on from my other thread (where one of my guppies had died due to not doing a full cycle and living in a tank so small not fit for purpose), i now have a 60ltr tank which has just started it cycle before putting the 3 remaining guppies in. What else can i fit in the tank? would probably have to be more guppies or tetras (small fish), i don't want to overstock it but want to make use of the space.