Nolvasan or other chlorhexadine products are very popular nowadays. Many places sell small bottles of it. It is not as tenacious as bleach and the smell will disapear as it breaks down - fairly quickly.
Justcage, a poster on this forum, sells a type of chlorhexadine.
What I like even better is a product called A33 Dry. It's a dry power you mix into water. It foams a bit and is a better odor neutralizer than chlorhexadine. It's also slightly better in laboratory viral killing tests. Not that that really means anything since we likely deal with different viral contaminants in reptile cages, but it should good. It also is supposed to work better in the presence of organic matter which is great for reptile cages. Ask your veternarian to order it for you.
I would use one of those. But do use bleach once in a while as it does kill somethings chlorhexadine and A33 won't. Maybe every fourth cleaning use bleach, especially on water bowls.
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Current snakes:
0.2 Gonyosoma oxycephala - (Silver/Yellow)
3.3 Gonyosoma oxycephala - (Green)
2.1 Gonyosoma janseni - (Black)
3.3 Gonyosoma janseni - (Black & Tan)