I'm interested in your filter box. My old one has a basket that may eventually fall apart and the manufacturer went out of business with no spare parts. I keep the filter media upright in it. I'd like to see some more photos of your filter box set up. Thanks.
yeah, I will take smore pics soon, but right now.... we got snow

in September!
The manufacture is Aquascape incorporated here are some pics from amazon ( the one I purchased )
as you can see, it includes some filter pads, which have beneficial bacteria, and also an option for bio balls on top, in the first picture you can see the waterfall lip is screwd on, which allows you to sandwich your liner between the waterfall box and the lip, so no more leaks!
the link: ( its a bit pricey, but the construction is just amazingly high quality so Id say its worth it )
https://www.amazon.com/Aquascape-Bi...rds=aquascape+bio+falls&qid=1599584783&sr=8-1