How many peacocks you have in the 75G? Usually overstocking is the key to minimize targeted fish.
Lets see if I can copy and paste the list...
[TABLE="width: 156"]
[TR]
[TD]2[/TD]
[TD]Maylandia estherae[/TD]
[/TR]
[TR]
[TD]1 [/TD]
[TD]Nimbochromis venustus[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Aulonocara stuartgranti[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Nimbochromis livingstonii[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Pseudotropheus crabro[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Sciaenochromis ahli[/TD]
[/TR]
[TR]
[TD]1
[/TD]
[TD]Aulonocara jacobfreibergi (Undu Reef)[/TD]
[/TR]
[TR]
[TD]2[/TD]
[TD]
Aulonocara jacobfreibergi (possibly, not sure both are the same, one still juvie colors)[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]
Dimidiochromis compressiceps[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Thorichthys meeki[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Cyrtocara moorii[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Astatotilapia calliptera [/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Tropheus moorii[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Lethrinops intermedius?[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Unidentified (silver)[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Peckoltia sp. L066[/TD]
[/TR]
[TR]
[TD]1[/TD]
[TD]Synodontis euptera[/TD]
[/TR]
[/TABLE]
Ok, the list halfway pasted right. My big Eureka Red is the bully, and the smaller one is half his size, was colored different, when I brought him home, he colored up identical to the large one, for about two days, now he's back to dark grey on grey, and mainly stays in the rocks. The two zebras are a yellow and a white, the yellow one is starting to look more like a yellow Lab, black edge on the dorsal fin... Might see about some clown loaches, but though the tank was stocked pretty heavy as it is.