Beth - Only you could have this problem : !
I think its worth a shot ! But what are you going to do when pair one wants to breed again and they have all those fry from both sets of eggs ? I got it - you could then move the fry to pair two and take their older fry away from them ! LOL.
Oh how I wish I had your problem !
BTW how is the pool project coming ? 8) Keep us posted.
scotz