If you can, buy from breeders. I suggest you to buy from mustafa(check out petshrimp.com , there is a store section and in it there is 4 categories, opae ula is in the SUPERSHRIMP! Categorie). Hope it helped you.
Not a whole lot of help, but I've bought some from a breeder in Texas. Much more reasonably priced than others. Don't know if he ships (or if it's even legal to do so without permits) to England. PM me if you'd like his contact info.
(Annual traveler to Colchester, Essex here...)
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Hello rob that might be useful you have a pm. As far as I can tell there isn't any permits needed unless you ship directly out of Hawaii. The main problem I'm finding is the cost of delivery is just over £100 $130ish for shrimp that only cost £14 /$20ish
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