the ozone reactor, as Ozone will quickly kill any invertabrates in your tank.. so if you have a problem with your carbon scrubber for example you could wipe out the invertabrates befor you wake up in the morning.
thats just getting to be to fine of a fine line for me as if I go away for a weekend I would constantly be worring about something failing and it putting to much O3 into the tank.
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*
Some strive to be perfect.... I just strive.
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