Are Melontaenia the same sp. as CW010 (Gold Lasers). I thought they were different.
Quite a hard one to source by all accounts
You could try these if you like the look of them:
http/www.ebay.co.uk/itm/CORYDORAS-MELANOTAENIA-x-4-WILD-COLUMBIA-/290600617103?pt=UK_Pet_Supplies_Fish&hash=item43a925848f
I can vouch for the quality of Ste's fish and probably the best packaged/deliverey methods you will get.