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Are Frozen Tubifex Worms Safe?


quikv6
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I bought a package for Hikari Frozen Tubifex Worms at my LFS. I have never fed these yet, but went down a rabbit hole of reading how tubifex worms should not be fed to fish at any cost, as they are rampant with parasites.

Hikari is reputable, but I obviously don't want to take the risk, if it indeed exists. Any thoughts?

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Freezing generally kills the kind of parasites one would be concerned about, I think it is more a live tubifex worm that is/was the concern. I have some fish that LOOVE them and some that couldn't care less about them. I tried them as an alternate to blood worms since I am allergic to those. They are defintely less universally appreciated than bloodworms, but being fed exclusively on one thing is never a good idea, so I chuck a cube in now and then as a treat

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I'd never seen frozen tubifex worms, just the freeze-dried, but a quick Google revealed that Hikari does indeed make them. They claim to triple sterilize them. (Radiation? Chemicals? Heat?) They claim that makes them safe from parasites. I might be more concerned about how the triple sterilization affects the nutritional value and integrity of the worms. I just use the freeze-dried and my fish love them and I've never had an issue with parasites or other problems with them.

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My Emerald Corydoras and my Colombian Zebra Pleco LOVE their tubifex worms. I use the same kind—the frozen Hikari. It’s fun to watch the corys slurp them up. They go crazy for them! I haven’t seen any ill effects after feeding them to my little fin babies for a month or so now. I feed them sparingly, more like a “cheat meal”, if you will, once a week 🙃

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