Advertisement i have at last been promised a scorpion for early 2020 when we return from an extended holiday to Spain, i already have an RUB enclosure of 50x30x17 cms with exo terra rain forest substrate over the top of sterilised garden topsoil, two hides ,at different ends of the container giving environment choice, and sphagnum moss over hides to retain and assist humidity . My choice of Heterometrus will be limited somewhat to general availability in UK, but can i ask which Heterometrus have the best natural light irridescance ? Ive seen some great examples of H.Cyaneus(blue) and H. Spinifer (purple) , i also like H.Swammerdami ,but it would appear easier to obtain a consignment of rocking horse manure!!!! The only source listed in UK doesnt have any available and doesnt think he will have any in near future. I HAVE kept scorpions before in the 1990's but they were P.Imperator and P.Cavimanus. any guides to best Heterometrus for irridescence,and general temperament of certain Heterometrus species would be much appreciated. Many thanks.