My tank has room for 3... is this a good number to get? or should they be kept in a larger numbers to really be happy. Should I get one male and 2 females... all males... all females... or is it not possible to sex them anyway...
With the male and female situation, if you can sex them at the shop, id say go for 1 male 2 females, all females, or all males. The shop will probably stock them at a smaller stage in their lives, where you wont really be able to sex them. just get three cories in this case i would say.