> >My sponge has deteriorated with age ( so have I ) and I am considering
> replacing it with florist's Oasis material, any comments ??
>
Dave, I have not found it necessary to have any substrate in the water
dish. Simply adjust the size of the surface area. I put the dish where the
fan will blow air over it, with the fan linked to switch on at the same time
that the heat unit goes on.
When I ran a University insectary years ago, I used saturated salt solutions
in plastic shoe boxes to maintain accurate RH's. The solutions can be
adjusted to maintain any RH at equilibrium. Put a small container of
solution into a larger shoe box. I used a filter paper wick in the small
container to increase surface area, but don't know if it was necessary.
Randy Oliver
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