I am helping my gal friend on her pond. A previous friend did all the labor but was unable to figure out the next step. Currently she has around 6 med sized gold fish in a 750 gal (approx) pond. She is going to sell her home so we wanted not to go cheap, but inexpensive. found a few on craigs list but not sure thats what we wanted. I need to know, a gravivity type of filter seems cheeper, is it because it needs to stay close to the top of the waterfall? I have seen little giants , tetra and fishmate. i already have a pump that is rated at 3000 gph. i can pick a filter up for 49.99 to 99.99. I like the fishmate but is a gravity feed. does the pump have enough push to get water volume up to waterfall. #1/2 feet from surface. Just looking for some advice.
Mike
Mike