Plastic Fantastic wormbins and boxes, instructions and comments from the experts :

Specific instructions and techniques when keeping worms in plastic worm growing units :

Please note : you will have 10-15000 worms
in your unit in 2-5 years time from 1000 worms.

Things that you can expect to happen to your unit :

Rats and mice, birds, centipedes and ants.
These animals can decimate your wormpopulation and prevent the food from being eaten by your worms .
To prevent rats and mice from entering your unit, and breeding and nesting in your unit, make sure that the unit has 30cm legs to stand on which are thin enough for rats to have no grip to climb up.
The centipedes must be disposed of by catching and killing them as you find them , they eat capsules and young worms.
The ants can be a nuisance if the trays are a bit too dry , so you can discourage them from being there by flooding regularly so the food is very damp and  place the legs in a container with water or better still kerosene, ants will stay out !
To keep birds out, make sure you have a lid on the unit at all times, once starlings discover your wormfarm, they can quickly collect all your worms to feed their young with.
Insects , moulds, fungi and potworms.
These are necessary and natural in the foodstuff, and help break it down for the worms, so don't worry about these.
Potworms are small white worms, which appear when the conditions are acidic. Feed them to the fish in your aquarium if you get too many of them. Use more garden lime or dolomite !
Migrating of your worms.
When the airpressure drops, the worms tend to crawl up the sides of the trays. This is a natural occurrence.
The worms come up on top of your lawn just before the rain starts, they know they may be flooded and drown, so they try

Just leave the lid on, when the weather improves they go back down into the food again, you may loose a few worms over the edge, they can escape through small spaces, so a tight fitting is desirable for every connection of the different parts of your system.
                                                               
                                                             Good luck with your unit !!