Alright so as king of diy said they are only good for little amounts for food waste, will that still work also would it be like 5 500ml bottle or 5 2L bottles.
You don't need 5 two litre bottles. Regular sized bottled water bottles should work, or something roughly equivalent.
Also, what King of DIY meant is that the filters aren't great for mechanical filtration.
There are two kinds of aquarium filtration: mechanical, and biological.
Mechanical filtration is the act of removing particles and debris from the water.
Biological filtration is the act of cultivating bacteria that will consume the toxic elements of ammonia and nitrite. Mechanical removes physical dirt, biological removes invisible poisons.
Fish only really 'need' biological filtration to live (because living in ammonia and nitrite will kill them), but mechanical filtration is good for their general health also. Since the kind of filter you're building is for biological filtration, you'l have to remove debris yourself, either by skimming it up with a net, or using a gravel siphon.