As we have a small aquarium with guppies, I started to think about running a green wall of house plants (that can clean the indoor air at the same time). I went online and found a nice set of planters from Greensun that can be mounted on the wall or on a metal frame.
The Greensun planters can be daisy chained and they have this water drop, but it is quite messy, and also, there is not much water in each planter, so I added some 1/2" PVC pipe on top of the water outlet to raise the water level to flood each planter, and then drain it creating a syphon with a simple U made of elbows.
Another add on to prevent water to spill between each planter is to put a piece of 10mm clear tube between each planter, that would drain the water out to the next planter.
At the bottom, you can see my favorite IKEA Trofast Bucket that host the 12V pump. I've added a little plastic bottle with acrylic fibers as a filter as described in this video. That will prevent clogging. I'm also using Reverse Osmosis quick connect tubing to bring water to the top as clear tubing will allow algae growth.
For now, it is not a real Aquaponics setup, as the sump tank is not connected to the aquarium, but I'm transferring some of my water changes from the aquarium to the green wall (most of the time they go in the regular Hydroponic setups).
