I received a couple of true perculas from Marine Depot and they looked great. Only problem, one of the two seems to swim almost frantically. The other has calmed a good bit. When the lights go out, WOW. They swim feverishly. All water parameters are good. Reef tank been up for 5 months and all is well. Any ideas as to why? Went through the acclimation process yesterday for over an hour. These guys are beautiful but I am extremely concerned they will not make it. Any thoughts would be appreciated.