Review on 🐠 Silicone Black Flexible Airline Tubing for Aquariums, Terrariums, and Hydroponics - Deep Jungle 3/16" I.D. 1/4" O.D. by April Goracke

Works overall - good price, very black/should prevent algae, soft, feels like high quality silicone. The main issue is that you have to be careful with kinks - the tubing isn't very thick so a small 90 degree angle cuts the air completely so only very small kinks can be created (or use a lot more material). Also quite smelly at first, you have to wash it down with a decent amount of water. Not stinky like the room stinks, but smells strongly about 6 inches away. Overall I would buy it again but would rather find the same hose just a bit thicker/more material.