I decided to start this thread since I haven't seen any dedicated thread about it. I'm looking for a cool recycling rig that creates a vortex (cyclone of water). Looking to pair it with my Nano (and probably the Lotus). I understand the design plays a big role in how well the cyclone flow appears, and don't really want to waste my money buying a non-functional rig Being cheap, I don't want to spend and arm and a leg (trying to stay under $150). But the only rigs I've been seeing in my price range are the mini vortex rigs from Kathy over on Dhgate. I'm interested in something a bit bigger than those shown on the site - something maybe a bit larger than the infamous D020 would be my preference So, what are your favorite vortex rigs under $150?