How to catch the bigger fish around the dock???

Newby fisher. Wife's family has a pond and I spent the day fishing. Was catching plenty of fish (released em all) using #8 and #6 hooks with worms on 4# line with a slip float rig or my beetle spin under a slip float (couple of cranks then let it fall). End of the day I tossed the remaining worms into the water. There were bream/crappie at least twice the size of the ones I was catching eating everything. What should I do to catch those instead of the smaller ones, go up a hook size? Any help would be greatly appreciated.

Try different things....big crappie baits, like a 3" plastic bait, or a great big minnow, and try using a heavier bait to get the lure/minnow deeper quicker so the bigger fish have a chance to see it.

Use lighter line and stealth approach if water is clear

fish at night.