Thanks for the advice, they are not banned on the water I have access to, I wanted a bait that is relatively immune to the attentions of all the small bream that are in the lake and hoover up everything else, I really don't want to use boilies. I hadn't considered peanuts though. I've never believed in throwing in loads of bait so the amount I have will be more than enough.
In my experience tiger nuts are pretty well the least attractive to bream of all baits; I don't recall ever getting a bream on a tiger nut - though I have had plenty of big roach on them. Boilies are not bream-proof anyway, particularly those that contain any amount of fishmeal.