First everyone let me tell you a lil about the thing and my expierence with it. About 13 yrs ago i had one and was a lil expensive for some plastic (75$), I thought. Then i moved so i had to tear it down. Got lost in the move and didnt bothered with getting new one. So here we are now wanting to set it up so i go to lfs to get one (a kit) the guy there said they DISCONTINUED them!!!!:jaw-dropping: Oh no, now what do i do. Get on line with AC and found one for free (thanks David) i paid for shipping. How great is that!:dance2: Ok now for the workings. It all came together. The pump,barrier wall and the river bed. the filter is part of the wall, carbon and floss no bio media. The 55# of gravel on the land side acts as my media. The cleaning is not to hard just a lil water change when needed, the peet moss you just change out with new. Done. I think i won't need a heater for it. The temp rose 5 degrees over night. (75 to 80) I do want to do something with the waterfall and river bed. Not sure what right now. Any sugg. are considered. Adding female betta today. Will post pics!