For chub, a 4lb-5lb mainline and a low-diameter hooklength of a slightly lesser breaking strain are advised. As for hooks, these should be size 16 or 14, strong but not overly thick in the wire.
Chub Fishing with Bread with Low Water with James Robbins
Fishing Guides - Broads Angling Services Group
Slip-Float Lakers (Lake Trout) by Matt Straw – Great Lakes Angler
HOW TO USE A CHUBBER FLOAT FOR FISHING SHALLOW AND FAST RIVERS OR
Float Fishing For River Silverfish Tips - Dynamite Baits
Catch more CHUB on the FLOAT
Archie Braddock Big Chub Fishing Tips Part 2 by Dynamite Baits - Issuu
Trotting For Chub On The Stick Float - Winter Small River Fishing
Bailey & Coster - Our Way withChub - Fish & Fly
Premier Chubber Float