the clear tubing will be covered with black plastic sheathing like one would cover wires with, it is just not pictured. I got this tubing from lowes. The containers are all HDPE2 recyclable yet still food grade. I use these to make Mead, or "honey wine" in, so I was sure they are food grade. I have two 120 gph pond pumps as well and a 2 head air
pump with 2 air stones to match. Is there a benefit to the drip over the ebb/flow? or vice/verca?
In addition, on a few of the "illegal" hydro sites they find that crushed lava rock once rinsed and washed well is just find for potting material so I plan on using that.