Are you talking about Grover Nelson Small Pond over by the zoo? I went out there yesterday for an hour or so after work, not even a nibble. I've been thinking I might try my luck at some crappie in Lytle Lake

When I first started fishing for stocker rainbows, I had the most success using velveeta cheese with some garlic powder mixed together. I would get a big chunk of cheese, put it in a ziplock and pour in a good amount of the garlic powder. Then just mash it all together. Use the same size of cheese as you are using for power bait. Now, I will say the cheese doesn't stay on the hook for multiple strikes, but it will get bit. When I started fishing with some slight current, I began to use berkley trout worms. I rip a small piece, roughly an inch or less and hook it whacky style with the small hook. I would toss it in and let it float and bounce around the bottom. I have also caught fish in a pond setting using trout worms. Just a very slow retrieve, drag it in front of their face. If they are there, they will hit it.

My best luck was corn in the ziplock bag with garlic powder.
But I have had much better luck with small hooks that are about a quarter inch long.
The small ones a half inch long do not get as many hits.