what are you guys opinoins on this filter. i have a 75 gallon tank with 3 big frontosa in it and a few other smaller cichlids and 1 large algea eater. i have a chance to get a brand new one for 70 bucks just want to make sure it is a decent filter. i currently have a wet/dry filtering system and with the larger fish it doesn't get the stuff on the bottom. thanks for any inputs.