What Do Fish Eat & What is Fish Food Made of? | petMD
Aquarium fish can eat all different types of food, from flakes to worms. Find out what type of food you should be feeding your fish.
Then there are the bottom feeders, like loaches and catfishes. What about them? If you feed according to the recommended five-minute rule, your bottom feeders won't get much to eat. Starvation is consequently one major cause of failure with catfishes, and over feeding in attempt to "make sure the catfish gets some" is another. In practice, however, things are not that bad and catfish can generally find enough to eat (remember fish need very little food). If you have a lot of catfish however, you should take advantage of the fact that most bottom dwellers are nocturnal and supply some sinking wafers when the lights go out. Make sure that this food is gone by morning. By feeding extra at night you are however walking a fine line between adequately feeding your fish and over feeding your fish. So be careful.
Before your start, get yourself a food processor. Then you can make any one of the various recipes that are kicking around. Most of these recipes have several things in common; namely they are bound together by unflavored gelatin and contain whole fish, vegetable matter, and beef heart. This is my recipe. I food-process several multivitamin tables (with vitamin C) to dust, then process about 1/2 kilo of the red meat portion of a beef heart (cut away from all the fat and connective tissue). Then goes in a good handful of spinach leaves (no stems), one young whole zucchini, and a few raw carrots. Then the bulk of the food is added, which is whole fish. The fish I originally used were those minnows sold as bait, but I have since discovered Shun Fat, an Oriental supermarket in Forest Lawn (at 3215 17th Ave, SE). Here you can get a wide assortment of frozen sea foods. Nowadays I buy a kilo of frozen capelin since they are full of nutritious roe. I also get a frozen 1/2 kilo bag of something called "shrimp fry". I am not sure exactly what this is (some form of krill I think) but it's a lot cheaper than buying real shrimp, which I would have to do if this wonderful stuff weren't available. I also add 1/2 kilo of mosquito larvae and Daphnia that I had collected myself and froze previously (see below for a discussion on live food collecting). All the ingredients are processed to a thick paste. Then a liter of water is added and the mixture is brought to a low boil to congeal the blood. I then dissolve three large boxes (36 packets) of Knox unflavored gelatin in a liter of cool water. I mix this liquid into the food (after it's cooled a bit) and let the mixture set overnight in the refrigerator. The next day I split the jelly into two or three-day feeding portions and freeze them separately in sandwich-sized freezer bags. I keep one freezer bag defrosted in the refrigerator at all times. My cichlids and turtles love this stuff. It sinks and doesn't cloud the water (too much).
Fish Food: How to Properly Feed Your Underwater Pet | petMD
What type of food should you feed your fish
Which brings us to the backbone of a fish's diet: high quality flaked fish food. What is this fish food made of that makes it a backbone? It depends on the type of food you buy, but most flaked foods are made up of a combination of fish meal, squid meal, shrimp meal, earthworms, spirulina, and vitamins and minerals. This provides your fish with all the nutrients he needs but can’t get in captivity.What do fish eat? Turns out they eat all sorts of things. Aquarium fish food is one of the most important topics to know about when keeping fish and a proper diet is essential. If you want to get the most out of your aquarium fish it is important to give them a variety of fish food. While you can give them just flake food, you should try to vary their diet with some of the different types of tropical fish food described below. Two or three small feedings a day is better than one feeding per day. Only put in as much fish food that the fish will consume within 2 minutes. Overfeeding your fish will lead to poor water quality and stressed fish.