I've been looking at the species profiles in the minnow/carp family, and I see that some of them are kind of short. I'm thinking primarily of goldfish and fallfish, because I know some stuff about those two and their both enough fun to have some tactics on there. Maybe if we gather information here, I can type profiles and message them to Andy and Corey, or maybe they want to just do it themselves? I don't know. Anyway, here's what I do know about goldfish.
-Goldfish normally eat small subsurface insects and crustaceans, but will occasionally munch on corn or peas.
-Goldfish prefer stillwater without to many predators and with healthy insect and plant populations, but can survive in other habitats.
-Goldfish are VERY light buyers, so small baits, small hooks, and sensitive rigs are all necessary.
-Goldfish will feed year-round and bite well through the ice.
-Goldfish almost always feed on or near the bottom.
-Fallfish are most common in small to medium sized coolwater streams and rivers with lots of rocks.
-Fallfish will eat everything from minnows to crayfish to insects (above or below the surface) to baby fallfish to carrion.
-Fallfish love inline spinners, worms, mealworms, jigs, and a wide variety of other baits, but the best thing I've found for really monstrous ones is a chunk of hotdog sprinkled with garlic powder.
-Really young fallfish lack the characteristic black-rimmed scales and look more like a member of the shiner family.
-Fallfish rise readily to flies and look strikingly similar to trout in the water.
Please add whatever other information you have. I'm not exactly an expert, so I'm sure I missed something important.