thiaminaise in store smelt?

[Dieselhybrid]

hello MFK

I have a question. Does smelt (the kind in the asian markets) contain thiaminaise? I found a great list on here but I noticed two smelt species were on it. One in both sections, with and without it. I don't know which species your average store smelt is so I'm unsure if it contains this.

Does anyone know for certain?

Thanks.

 

[Oddball]

Like you said, can't tell without knowing the species. It would help to see a pic and/or know your location so as to check the local wholesaler lists.

 

[MN_Rebel]

Most times its rainbow smelt that gets sold in stores.

 

[Chub_by]

The european smelt which are sold here definately have it.

 

[Dieselhybrid]

Oddball I'll post a pic up tonight. I buy them in AZ and in WA to feed my fishes at my homes. Both look the same. Neither store can tell me what species they are, they may know but maybe they don't understand me. I'm shutting down my AZ tanks soon because I'll be in WA most of the summer and I'm tired of paying house sitters. So most concerned about this Asian market source.

I read that if I rotate pellets and foods containing thiamine, it can cancel out the thiaminaise. Any truth to that?



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[Oddball]

The more varied and nutritious the diet offered to your fish the less impact they'll experience from low levels of thiaminase.

 

[Dieselhybrid]

Would you suggest removing it from the diet entirely?

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[Oddball]

No. Your fish will benefit from the smelt's protein and calcium. If the type of fish doesn't matter, go with cold-water species such as cod, pollock, or halibut.

 

[Dieselhybrid]

Old thread but they are indeed Rainbow smelt Thank you mnrebel. I have added cod and halibut to the diet along with tilapia Thanks for the suggestions oddball. Still feeding smelt once weekly because I think whole fish with bones and organs is important. Thanks for the help MFK.

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[RD.]

Supplement B1 with a vitamin pre-soak such as Boyd Vitachem and what type of smelt etc that you feed becomes a non issue.