Rob,
Hi, I dont know whether you have covered this elsewhere, but what are the sexes of the 4 adult zebra you keep in each tank?.Just asking since the males can be quite spiteful to each other when full grown especially in a smaller tank..
I have heard from a lfs,that a continental breeder keeps a tankful of females, but the males ,one to a tank and introduces a female when it is ready, into the males tank. What do you think of this idea. Would prevent the fighting between males wanting Alpha status?.
Regards,
Des.