Bream will eat almost anything. The key is getting them to stay in your swim
long enough.

Grounbait is the key. I use various gubbins but find a mixture of Vitalin,
Hemp, Casters and trout pellets mixed with brown crumb to bind it, works
very well almost anywhere. Don't be scared putting in a lot of this if there
is a large head of Bream, as they will find it and finish it off. For
hookbaits, I find it depends on the size of Bream but generally cocktails
work well and constant changing in the session keeps them coming. Try Worm +
sweetcorn, Sweetcorn + Red maggot, Maggot + caster, Three maggots on a 14's.
I have caught literally hundreds of fish on these baits, but if they are
feeding you'll get a bite on almost anything. Never be afraid to experiment!