I don't think Bio-Spira is sold over here.
Bactinettes is available at a few lfs, it would probably help if you said where you are. I can get bactinettes from Swallows in Rayleigh, but that is little use if you are in Cumbria.
Also, bactinettes is not as good as Bio-Spira, it contains the wrong type of nitrite oxidising bacteria, so will not instantly cycle your media like Bio-Spra will.