Salt water fish as food

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Yoda1

Candiru
MFK Member
Dec 2, 2010
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On the weekend I went to the lfs where I got my hystrix from to buy more smelt/silverside for them.

So far, they are just eating this and earthworms. Have been trying to get them onto Hikari cichlid gold and massivore but As yet they are not taking it.

The person at the lfs said to me I should be feeding the smelt sparingling as fish the sea have a high salt content and it is not good to feed them to Rays as a staple food.

Any comments?
 
As far as I know, all manufactured fish food (pellets & flakes) for fresh water fish are derived mainly from saltwater species. Then there's the feeding of live brine shrimp for baby freshwater fish that's been used for decades.

So, the practice of using saltwater species to feed freshwater species has been going on forever. Never heard of a concern over this common practice.
 
Most species of saltwater fish are a good choice for feeding most freshwater species and less chance of parasite transmission
 
Yoda1 said:
On the weekend I went to the lfs where I got my hystrix from to buy more smelt/silverside for them.

So far, they are just eating this and earthworms. Have been trying to get them onto Hikari cichlid gold and massivore but As yet they are not taking it.

The person at the lfs said to me I should be feeding the smelt sparingling as fish the sea have a high salt content and it is not good to feed them to Rays as a staple food.

Any comments?
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Not sure if feeding salt water fish is bad but the lfs advice is partially correct. I had a bad experience with my armatus from feeding too much smelt. The reason is smelt contains thiaminase. It destroyed my fish.
http://api.viglink.com/api/click?fo.../www.seagrant.umn.edu/fisheries/smelt_mystery
 
what about sw fish you catch? like croaker.. they are all over where i live
 
I use silversides.. and a big bd breeder in NY uses almost only silversides and his rays are over ten years old. I asked Dr. Paul Loiselle about this topic and he told me that you can not feed freshwater fish to saltwater fish but the opposite is fine.
 
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kendragon said:
Not sure if feeding salt water fish is bad but the lfs advice is partially correct. I had a bad experience with my armatus from feeding too much smelt. The reason is smelt contains thiaminase. It destroyed my fish.
Click to expand...
A few years ago I heavily fed my first two armatus smelt and they both died after a few months.I fed my third armatus very few smelts and it lived for a few years before succumbing to complications from a panic attack.
 
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