Sorry to bother anyone, but I have a technology report due in two days, and I am doing it on the fish tank filter. I would ask my dad for help, but as I'm sure I've posted before, he works nights and he is sleeping right now.
I've been searching on google, but all I can find is filters for sale. I need to know who invented it, why they invented it, how it works, etc.
If anyone has any information, it would be greatly appreciated!
Britt
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