Aquatic plants. Catfish also eat plant matter. They will feed on aquatic plants that grow in the water such as algae, lotus plants, water lettuce, and many others. They may also feed on non-aquatic plants that happen to fall into the water such as grasses and soft leaves. This fish species can also feed on aquatic plant matter called detritus.

Marine fish and fish oils are the richest natural sources, but they can pose a risk for overdose. Other sources include freshwater fish, eggs, beef, liver, and most dairy. The most common synthetic sources are vitamin D3 and vitamin D2 supplements. Deficiencies can cause rickets, enlarged joints, osteoporosis, and other bone issues.

^{Highest allowable average mercury concentration in fish per serving when eating 2 servings per week = 0.23 µg/g. In order to be protective, any fish with an average mercury concentration greater} Temperature. This decides the metabolic rate of the fish and its rate of food consumption. If you have your goldfish in a warm tank, that is 20C / 68 F or above, your goldfish will want to eat more. Although we don’t recommend it, if you keep your goldfish at 26 C / 78 F, then you should feed them every day, sometimes even twice a day as long ^{In fact, many adult otters will spend on average 5 hours per day searching for food. Combine that with their natural hunting gift, and you will have a super-skilled fish hunter. How Many Fish Do Otters Eat in a Day? Compared to other mammals of a similar size, otters have the highest basal metabolism rate. This means they burn calories much} Pj4L. 21 394 359 348 192 23 306 400 106

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