I find JBL media to be the best available. IF I was to stock a new 2217 I'd invest in a few liters of this:
My 33 gallon/125 liter tank. My photography on flickr.
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BRAND NEW NEVER OPENED NEVER USED!
"EHEIM Quick Vac Pro Automatic Gravel Cle ...
Everything is brand new, tank only lightly used
for aquascape. I purchased a larger tank for my
Offering a beautiful blue and yellow damsel.
Approx. the size of a gold dollar coin. He's
being a b ...