pheonix: look at the ventral fins (the two long ones right below the belly). Females have really small and thin ones, and males tend to have longer and thicker ones. When males flare, they flare sideways at the other fish in order to look larger. When females flare, they flare head on.
Here is my quick question:
I forgot to take the blanket off the tank (i use it to block out light when it's night time for them), and it's thick enough to block out all light. Will my boys be alright for a day in complete darkness until I get home?
Last edited by JKfish; 04-21-2011 at 12:12 PM.