150 gallon filtration question

[jerrybaittackle]

I'm new here ,so forgive me if this is posted in the wrong spot. I own a bait shop in Wilton Iowa . I use a a chest freezer on a digital thermostat as a minnow tank. I a have a garden pump and pvc pipe set up for circulation. I would guestimate that its about 150 gallon tank . The set up works great and has worked great for the last 5 years. the problem is coming up with some sort of filter. tried buying large household filters but they clog up way to fast . have to do a 50% tank drain and siphon every 4-5 days early spring, every 3 days in the summer. it normally holds any where from 3000 to 6000 minnows a week depending on sales. Get fresh stock every other week. So looking for some recommendations on rinse able filter options.. I have city water but its pretreated(water softer) . it would be great I had a well I would set it up as continual fresh water system.But I don't. Thanks for any advice you can give. with that many minnows the water gets pretty dirty quite fast .. Thanks Jerry http://jerrysbaitandtackle.webs.com/

 

[Scottyhorse]

I would look into making a sump or a couple large canister filters...

 

[1998golfer]

I agree with a sump or canister filters. If you go with canister filters you could get 2 sunsun 304A filters, I have one and it's really quiet and it is really powerful with tons of room for media... they are fairly inexpensive compared to other canisters and do their job well..

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