aquarium airline tubing holder with suction cup adapter
thingiverse
For holding your airstone airline tubing inside your aquarium using a small sized suction cup, like the one you use for aquarium heaters. I also printed the airstone out of PLA from here: https://www.thingiverse.com/thing:4719595Currently running in my 5 gallon planted tank, working wonderfull so far :)Designed in tinkercad
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