I just purchased a 75 gallon aquarium and have stocked it with African Cichlids. The aquarium came with 2 Tetra Whisper 30-60 Filters... First of all, is this setup strong enough to properly filter a 75 gal tank? My tank is really really cloudy right now, I just did a 40% water change two days ago and its already real cloudy again. Is this due to problems with the filter setup or is this due to the tanks natural cycling process? any input is appreciated! Thanks.