The aggression is getting better. The one who was getting picked on is the only one who is still getting 1 live shrimp a day. He is a very slow eater when it comes to the frozen. He watches it so long the others snick it out from infront of him and he gets none. So I sneak him a live one once a day right before lights out for the night. He snicks that in a hurry! I try to make sure it's a pregnant live shrimp. Extra yummy with babies, lol.
The other 3 get 2 live shrimp a week each as a treat. Otherwise it's frozen all of the time. No more frozen food snobs for me, thank you! That was way too expensive.