REPLY
1ST the pump you have already is way to powerful for the tank you want to use the wet dry filter set up on just keep that pump you have for when you have a bigger tank later on you will already have a pump for when you build a new filter/sump. the combo kit link i gave you listed on ebay will be fine for what you want to do. hes a great seller i have bought many items from him.
2nd when you get to target look at all the plastice drawers they carry i know they carry the same selection walmart does i use the 3 drawer up right style like the example in the pic you posted someone made a wet dry out of they work great.
3rd yes bio balls will work, plastic pot scrubbies also are good, just about anything you want.
Top drawer i use foam pad middle drawer i use 100% polyester batting (NOT the fire proof kind they have 2 types make sure you get the untreated) you can get at any sewing store like jo anns comes in a roll i get the big roll so i always have some on hand and bottom drawer i have bio balls and plastic scrubbies about 1/2 full.
4th when you go to the hardware store like home depot to get your vinyl rubing you can get a bulkhead to put thru the top of the drawers to connect your over flow box to drain into the drawers. i just drilled the bottom of each drawer to allow water to drip down from the top drawer all the way down and out the bottom of the last drawer back into the sump. these are very easy wet dry filters to build and really look good for a homemade DIY filter.

1ST the pump you have already is way to powerful for the tank you want to use the wet dry filter set up on just keep that pump you have for when you have a bigger tank later on you will already have a pump for when you build a new filter/sump. the combo kit link i gave you listed on ebay will be fine for what you want to do. hes a great seller i have bought many items from him.
2nd when you get to target look at all the plastice drawers they carry i know they carry the same selection walmart does i use the 3 drawer up right style like the example in the pic you posted someone made a wet dry out of they work great.
3rd yes bio balls will work, plastic pot scrubbies also are good, just about anything you want.
Top drawer i use foam pad middle drawer i use 100% polyester batting (NOT the fire proof kind they have 2 types make sure you get the untreated) you can get at any sewing store like jo anns comes in a roll i get the big roll so i always have some on hand and bottom drawer i have bio balls and plastic scrubbies about 1/2 full.
4th when you go to the hardware store like home depot to get your vinyl rubing you can get a bulkhead to put thru the top of the drawers to connect your over flow box to drain into the drawers. i just drilled the bottom of each drawer to allow water to drip down from the top drawer all the way down and out the bottom of the last drawer back into the sump. these are very easy wet dry filters to build and really look good for a homemade DIY filter.

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