All about Denitrator

after running denitrator for 3 months, there wasn't much slim when i opened it up. does it mean the denitrator is tuned correctly? output of denitrator is 0mg/l ammonia and nitrate.

Sounds good, but your Denitrator only has bioballs? what kind of pump did you use to control the flow rate? You are using this Denitrator on your aro tank?

Peter .. IMO, siporax and biohome are better biological filter material for all internal, external and trickle filter systems than sponge or bioballs.

This is a diff view from Atom, but you're using diff system? Yours are using sulphur beads? Really must see your Denitrator sometime, and Bro Octane's as well, and of course Atom.
I'd be quite keen to have it if I can fully understand all the risks.