You should not have any smell. This is an ear mark of poor ventilation and or poor cleaning. Oder is caused by bacteria. Proper cleaning kills bacteria and Oder with it. Poor air flow allows excellerated bacteria growth = more odors.
Healthy habitate is a great product but it is an enzyme and is neither a cleaner nor disinfectant. It is a post cleaning and post disinfectant.
I would suggest proper cleaning materials (f10 or Chlorahexidine) • follow the instructions • and more ventilation. This is the problem with reducing the air flow of a open top it is poorly vented to start with.
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