dave i use sundews and other carnes to control fungas knats and other bugs in my orchid grow room. the only thing you have to be concerned with is the humidity. the carnivorous plants like 80+ humidity
fungus gnats in my vivarium. But they might be going awayon their own or because of the mosquito fish fry.
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All that is gold does not glitter,
Not all those who wander are lost;
The old that is strong does not wither,
Deep roots are not reached by the frost.
-J.R.R. Tolkien, LOTR, Fellowship of the Ring