I have two 5000lph wavemakers in my 1200*600*600 along with the cf1200 filter. There is not too much current down the far end of the tank, i have both at the same end.
My natives probably like more movement than Cichlids might, and some would like even more current than what I have in there.
If you are looking at the cheep resun ones on TM then they are cheep for a reason , one of mine arived with a broken shaft, that was replaced promptly, and I managed to break another shaft when one started in reverse and sucked small stones in and I had to pull the cover off