What not to feed

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Please show me where anyone with a background in fish nutrition states that feeding rodents to ones is fish is a good idea. And yes, I am aware of the fact that in the wild rodents are occasionally eaten by some predatory species of fish.

Generally speaking, most fish kept in captivity are best suited to consume the amino acids, and fatty acids, found in fish - not chicken, or beef, or rodents.
 
Nothing is wrong with feeding smelt. Lots of hobbyists feed smelt without any issues. No matter the type of fish, the source of that fish should always be taken into consideration, as in wild from the ocean, or farmed in China.

As far as thiaminase, a total non issue if one uses a B1 vitamin supplement, such as Boyd Vitachem, or feeds commercial fish food 3-4 times a week.
Sorry I don’t know how to reply without the giant quote, I’m in Michigan and I eat our wild smelt I never heard of them being bad. I was thinking of feeding some to my fish .
 
Thiaminase can be an issue with certain fish in the Great Lakes, as well as other areas, but as previously stated previously pretty much a non issue if one uses a B1 vitamin supplement, such as Boyd Vitachem, or feeds commercial fish food (for additional B1) 3-4 times a week. More info on Thiaminase; http://www.wetwebmedia.com/ca/volume_6/volume_6_1/thiaminase.htm

BTW - 40+ yrs ago I spent some late nights netting smelt on the Great Lakes. I didn't enjoy the fish nearly as much as the beer. :)
 
something to consider with diet (and this goes for all life, ourselves included) is weighing the pros and cons.

for example let's say "food example 1" has A, B, and C nutritional benefits but it causes X, Y, and Z damage. does that mean "food example 1" should never be consumed? maybe... maybe not... because it might be the only (or most easily available) source of A/B/C nutrition, right?

and then you have to consider that even beneficial things can become damaging if consumed excessively.

of course, some things are patently and overwhelmingly beneficial and, vice versa, some things are patently and overwhelmingly damaging (looking at you baconator).

diet's a complicated thing i suppose.

having said all of that, i mostly just read about other peoples' experiences and then feed and observe with my own fish. if they look good and do well eating something then i continue to feed that way until something changes or i learn better from peers or personal experience.

this is a great thread btw. great info! ty to all contributors.
 
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