did you find one yet? i have a spare regulator...have to look for and test it. lmk if you're still looking for one. how much media are you looking for ....again i have spare of those too...have to look through my fish closet.....lol.
Kuya Jun Tom got your back he always has extra lol!
Make sure u get the Coarse or extra coarse media for the octopus Ca Reactor lmk if you need help installing it oh btw u will also need a ph controller with the probe call me if u have questions