Please help. Is my worm bin too dry and what is the best way to get it wet?
Setup. A bit over 1wk old, it consists of a wooden box on casters with a pvc grate at the bottom. Area is 2.5 sf and volume about 40 gallons. The initial bedding was 50:50 shredded paper and composted yard waste to a depth of 1". In the last week I have fed only three banana peels and a quarter of a banana, followed by shredded paper and dry leaves.
Problem. It's too dry. It's certainly drier than the 60-90% recommended in the "worms eat my garbage" book. Every day I add about a cup of water to the top of the bin, and every day the bedding on top is dry and when I stick a finger up the bottom it is dry as well. The soil directly underneath the bedding is moist (not enough to squeeze water from, but it clumps together). I'm not sure how deep the moist layer is.
Solution. What's the best way forward from here?
a) not worry, the bottom will always dry out
b) not worry, the drying will slow as the soil gets deeper
c) start adding two or more cups of water per day until the whole bin is moist.
d) just water the bin like a planter to runoff
e) put plastic film over the bottom to reduce air flow
f) feed more wet food like tea leaves
I am leaning towards d) water like a planter to runoff, probably close to a gallon of water required; should I water the whole bin or half today and half tomorrow?