$-
45gallon tote - $7 on sale at target
scrubbies - $10 for 10 8 packs at the dollar store
free-
more scrubbies - i dont even remember buying them but there were a bunch in the closet
egg crate - free i had scraps
under gravel/drip tray - free it came with a tank i got 3 years ago
filter floss - free i use it at work
good call
assuming you dont have an extra 55g tank lying around, a big plastic rubbermaid tub is a quick way to make this cheap filter, even cheaper. and you can usually pick them up at the same place as the 3 drawer bin. theyre usually right next to each other.
Quick question, i can never figure out how to match the pump output with the amount of water going into the wet/dy, do you have to remove some water every so often or hows that work