Well I fish usually outside cover that is less then 6 feet deep. And I get alot of small fish. I fish in a 13 square acre pond that gets 18 feet deep. Where would be the best areas to fish at this pond?

Or there is a 10 square acre 37 feet deep nieboring pond that I had a big fish on this year. Which pond would have better potential for bigger fish also?

It 's a very common assumption that the fish will be "deep", however, depth menas nothing unless the bottom contour makes it worth, it 's the structure what attarcts the fsih not the depth. so you have to study the terrain, the contour, the bottom composition, the type, ammount and distribution of the cover in order to find the places that will hold fish.

Let me put you an example, my friend Pedro 's grandfather had a farm, the farm had a rectagular shped irrigation pond about two acres in surface, the pond had a slope that made it go from 2 ft deep on one side down to 12 ft on the other side, the bottom was similar to what you see in a swimming pool, this pond was covered in about 1/3 of it 's surface with tules ( on the shallow side ) , tules are shallow water vegetation and it grew only on the shallow side, on the deep side the bottom was covered with hornwort.

So if deep means ( in somebody 's mind ) big fish well, the best place to fish for the big fish in theory would have been on the deep side of the pond, that 's in theory, however in the practice such thing was hard from being true, where were the big fish ?

1.- where the thicker cover was

2.- where hornwort met tule

So fish would rather be on the tule side ( 2-4 ft deep ) or near the zone where two different types of cover met, the transitional zone from the shllow water to the deep water, such transition zone was created where the bottom contour changed in angle and steepness.

It 's the combination of depth/ bottom contour/ cover what draws the fish to that place, depth on it 's own lacking the other elements is very unlikely to draw the fish to it. Study the place before jumping to conclusions.