Seventy Percent Humidity in the Fill Room: SAP That Drinks the Air
SAP in an open hopper at 70% RH picks up water before it meets the batch. How much, what it does to dose accuracy, and the cheap fixes that work.
Sixty-Five Percent Humidity: The Snow Floor That Never Dries
At 65 percent relative humidity snow never sets, boots smear it and biofilm follows. Why sheeting makes it worse, and how to mix for a damp venue.
Keeping Dart Frog Vivarium Humidity Stable Between Mistings
A dart frog keeper can usually tell the humidity is wrong before the hygrometer does. The glass stays clear when it should fog at the corners, the leaf litter curls at the edges by mid-afternoon, and the frogs sit lower in the tank than they did last week. By the time the gauge reads 60 percent, the…
Monsoon Storage: Keeping Leachate Polymer Free-Flowing at 90 Percent Humidity
Relative humidity sits above 85 percent for weeks at a time on many sites, and the polymer store is often a converted container with a metal roof and a roller door that stays open while the forklift works. Under those conditions a bag of super absorbent powder starts absorbing before it ever reaches…
Egg-Laying Species: Holding Moisture Without Drowning the Clutch
An amphibian egg is a small, permeable package that needs to stay wet and still breathe. Those two requirements pull against each other, and a substrate that satisfies one usually breaks the other. Keepers who lose clutches almost always lose them to the wet side: the eggs sat in a film of water, th…
Misting Systems and Polymer Layers: Run Times That Don’t Flood the Drainage
The solenoid clicks at 07:00, the pump runs for 60 seconds, and by 07:04 the glass is fogged and the drainage has taken on half a litre. Two weeks later the same tank smells like a pond and the frogs are sitting on the background. Automated misting fails slowly and quietly, and the polymer layer in …
Tree Frog Enclosures: Why the Floor Shouldn’t Be the Wettest Part
Most tree frog problems start at the bottom of the tank. Keepers building for a White’s tree frog or a red-eyed tree frog often copy a dart frog setup, soak the floor, and then wonder why the animal sits on the glass at the top corner with its legs tucked. Arboreal frogs drink from leaves, fro…
Humidity, Clumping and Shelf Life: Storing Gel Through a Wet Winter
A 25 kg bag of dry polymer looks inert. It is not. The granules are engineered to grab water vapour from the air, and in an unheated store room through a humid winter they will do exactly that — slowly, invisibly, and enough to turn a free-flowing powder into lumps that block a spreader and dose une…
