Article Types of Food

TYPES OF FOOD

Commercially prepared foods sometimes need to be supplemented with fresh items and livefoods. Freeze-dried livefoods tend to be less palatable to fish than thawed livefoods, because they have a lower water content.
Some livefoods can be cultured at home; a container of water left outdoors in the summer will attract breeding midges and mosquitos, and their larvae can be removed with a sieve. The way in which food is presented to fish is also important. The means of delivery should take account of the fish's normal feeding habits.
Bottom-feeding catfish, for example, are unlikely tempted by flake floating on the surface.

PREPARED FOODS
[*]Pellets are good for large fish, such as pacus, which can swallow them whole. They may float for a time before sinking.
[*]Granules are more dense than pellets and sink rapidly to the floor of the aquarium, making them ideal for bottom-dwellers.
[*]Flake floats, so it will attract fish to the surface to feed. Suitable for smaller fish, it can also be powdered and fed to fry.
[*]Tablets are useful for group feeding. They are too large to be swallowed whole, so give the fish time to take several bites.

LIVEFOODS
[*]Brine Shrimp in their larval form, called nauplii, are idea for rearing fry. They can be hatched from eggs at home.
[*]Daphnia ("water fleas") are a good conditioning food for smaller fish. These crustaceans can also be used to enhance color.
[*]Chironomus worms, also known as bloodworms because of their color, are actually the larval form of a type of midge.
[*]Mosquito larvae are eagerly eaten by many surface-dwelling fish. They may also help to simulate breeding behavior.

FRESH FOODS
[*]Carrot was used as a natural coloring agent before there were commercial color foods. It is high in fiber and may aid fertility.
[*]Sliced cucumber and zucchini are a good source of vitamins and roughage for herbivorous catfish and some cichlids.
[*]Shelled peas, both fresh and thawed are a good dietary supplement for bottom-dwellers; avoid using salted canned peas.
[*]Beef heart, trimmed of fat, should be used sparingly, since it pollutes the water and may cause obesity in fish.

Also, I can tell you first hand that my plecos,corydoras, and most of my other community type fish just love canned no sodium french cut green beans!

for information regarding feeding view - Fish Feeding Quantity and Frequency

 

I'm pretty sure most, if not all, know how to prepare food.
(Ie. Open a can, pop out a frozen cube out of a package, blend in blender and freeze).

 

I've fed cucumber and zuch. with no negative effects.

 

haven't tried them, but have even done the live brine in the past.
I'm sure someone on here has tried/uses the others though.