I recently used Maracyn to treat BGA, and it seemed to have no ill effect on the biofilter. So removing the filter may not be necessary.
I do wonder how well the Maracyn would circulate without the filter. And since poor circulation is often implicated in BGA outbreaks, that makes me think it may not be a good idea to remove the filter.
I do wonder how well the Maracyn would circulate without the filter. And since poor circulation is often implicated in BGA outbreaks, that makes me think it may not be a good idea to remove the filter.