So I guess I will show what I have set up for my tanks
For the 600 gallon I have a 110 gallon Rubbermaid stock tank for my sump stuffed with ceramic media, marine pure blocks, I have a 5 gallon Home Depot bucket full of eheim media. 2x jebao 12000lph return pumps that pump through 2 nu-clear canister filters with extensions one is converted to k3 reactor the other I still use the pleated filter 2x 100 micron. Three 7”x36” filter socks and a UV sterilizer
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I also run a closed loop filter with a wlim pond pump that pumps 3k gph through a (poor mans ultima) 21” Hayward pool sand filter stuffed with ultima 2 media
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In addition to these two set ups I also have a Rubbermaid trash can with about 50 liters of K1 maybe a little more can’t remember
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So that’s My filtration setup on my 600 gallon I would love to add a drip system but as of right now old fashion water changes I just flip the sand filter to waste or backwash when I want to clean it and dump the water out the basement door i do about a 500 gallon water change once a week on it. I add prime at the amount to treat 1000 gallons my total system is close to that
The 180 gallon I run just a 75 gallon sump I diy’d into a K1 reactor it has one 7”x36” filter sock and a jebao 5000 lph return pump
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Future filtration addition to this tank will be a wlim glass filter with a reeflo hybrid gold pump haven’t installed it yet I have everything. I change approximately 90% during water changes I add prime to treat 300 gallons with the sump it’s probably close to 250 gallons give or take.
I’m not sure on monthly running cost but I know when I added the wlim pond pump it added approximately $35.00 dollars to my monthly electric bill small price to pay for the hobby I love so much.