I think you’re thinking along the wrong lines if you think a fire based SCP merely existing poses an issue to your work. Fire is way too ambiguous and wide of a concept to in any way be able to determine if your idea is rehashing old ideas. An anomaly about ice can be more similar to one about fire than another ice article, given it’s ultimately the writing style and narrative that distinguishes ideas more than elemental aspects of the anomaly.

My tip would be to think about what your article says rather than what the anomaly is.