i can get 4 for around 6-7 inches each for 60$, i have 2 already thats was spawning when i bought them, but should i get 4 more and put them all 6 in a 75g?
that will be a little cramped for them. If you already have a spawning pair why would you want more..? Thats a pretty good deal for uarus thats size though.
Sounds like it would be very crowded. They get about the same size a severum. 6 of them in a 75g would be a hole lot of fish. 2 sounds more like the right number for that tank.
No. Definitely not. I am in your situation now, I've got a pair ~7" who regularly spawn plus three other 4-7"ers and a 6" rotkeil in an 80g. I'm looking to re-home the three "spares" as there is just too much aggro. Uaru get along in groups when they're young, but as they mature and pair off they can get quite aggressive towards each other. Keep your pair and be happy with that.