Belfast angling centre

[corbyeire]

Anyone know what the white stuff is they are selling their worms in?
its not polystyrene - mad sort of caked crumbs

[gd]

Rag? Vermiculite ?

[corbyeire]

maybe it is vermiculite - but it was so uniformly white and the same sized grains
rag in it alright

[Etihad]

Might be stuff called pearlite. It is used in the same way as vermiculite as an insulator. i have used it in the past to keep rag in. It is pure white and smaller particles than vermiculite.

[Al and Jordan]

it's called perlite
http://perlite.net/
just do'nt spill a bag of it in the boot of the motor as it's a nightmare to hoover out