GenX or Carib-sea arm media


New member
I am using the same in my Koralia reactor and it is working well. No clumping or sludging and steadily keeping the alk at 10 dKh and ca++ at 460 ppm (obviously a combination of reactor and media function).


New member
i like using coral skeleton in my primary chamber and arm in a secondary. caribsea has a skeletons media now similar to schuran/genex except it is smaller pieces. i like it better.