Its always nice to have more circulation, maybe set it on low for now. U went and got the trigger anyway? Triggers DO need a good amount of room to swim, and I dont no if 2 triggers will be okay for 5-6 months. Fish stores will tell u anything within reason to make a sale, but there is also the chance that u may have gotten an aggressive fish. Some fish can be aggressive, others calm, in the same species. Its like, they SAY itll be allright, but ya never no how the fishll act. My lfs told me that SOOO many fish would act well togehter, but that didnt happen. Wasted tons of money on fish that way. I guess if u get that 125 going, u should be okay, just make sure the fish dont start attacking the other tank mates to establish power or sumthing like that...