ULNS - Denitrators

[MitchM]

Originally Posted by b09u5

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I have tried to find out why sulfur denitrators went out of style, or never caught on in the first place. If anyone can help me figure this out, I would appreciate it. I can't find too many down sides to them, aside from having to monitor pH, dose Alk, and keeping an eye on ORP values on the aquarium and effluent as a method of monitoring the viability of the bacteria within....

b09u5,
Both coil and sulphur denitrators went out of style because they were prone to clogging or when vunerable to power failures, gave you an H2S problem.
Maintaining a slow constant flow was critical with them.
Follow the suggestions everyone else here has listed and you should be fine.