Just had a look thru History. And this is the shop I purchased the Bee Pollen and Spirulina from.
https://www.ebay.co.uk/sch/naturalorganicshop/m.html?_nkw=&_armrs=1&_ipg=&_from=
Parcel arrived this morning and all the shrimp were banging on the glass when they spotted the bee pollen. All I need now is a way to get it down to them without it going all over the tank.