I have a 100 gal tank with 4 polys an angelfish 2 BGJDs a ropefish a royal pleco a swamp eel and a BKG fish. There is alot of waste I do a 50% water change and vacuming twice a week. I want to put s power head in by the rocks to flush out the waste so the filters can grab it and I can vacum it . Do you think thats ok I dont want to stress the fish with the . extra current do you think they will be ok with that. Thanks