Oase bio master thermo 250

[BuddyTheGreat]

Best media to be running inside? It’s pumping to a 22 gal long tank.

 

[BairCorals]

I'd run a bunch of rock rubble if you have any left over, if not just load it with any bio media. I've used the umedia balls from petsmart and they've been working well. Then of course I'd recommend throwing in a bag of carbon somewhere then I'd just fill the rest with polyfill. At least that's what I'd do with it