I am new to site but have my first pond. Currently it is only 90 gallons with a 330 gph pump inside a stock filter casing I got from home depot. I am going to rebuild the pond into 200+ gallon pond with a pond liner instead of the prefab lining. Is it worth building a tank filter for this size, and would I be able to conceal it? Plan would be to build it in back and have it built into the waterfall. Would my little 330 GPH pump still be enough? I realize i would be making a small 20-30 gallon filter for this. Pond is currently very cloudy and out of sync, but I have 2 small koi and 6 goldfish in there. here are the pics
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