So my mom is getting a year round green house (Possibly) and wants to use the water and poop from my tank and wants me to set up a few bins out there. I already found some bins that I can use. But now I'm thinking about filtration and want to do one large filter, so I'm going to get a garbage bin to place in the corner space (That's unusable for my mom's plants, because there isn't a good way for her to get back there. So would I be able to just have hose that flow down to the bin and then flow through some lava rocks to a reservoir at the bottom and have a pump, pumping the water back up to the tanks. Would this work as kind of a wet-dry filter? I have a really powerful pump, and I'd just have to do the math to see how much water needs to flow from the bins to match the mount being pumped back up.