micro stuff caused by pump¿

[mossman604]

i bought a used tank setup off craigs list approx 2 month ago, 2 days ago my pump broke little giant, there was a second 1 that came with the setup, i hood it up had to adjust a little plumbing now there little micro stuff and tine debris in the water that i cant filter out, could this be the pump. this didnt happen till i hooked up the new pump, any ideas