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Originally Posted by PEMfish  Also, I plan on buying feeder fish for them once they get older, but NOT giving them to the piranhas. freeze them first. Nothing, fungus, parasites, is said to survive that. I won't do that often sense they hold little nutritional value.
So I'm thinking this is becoming more of a possibility, the piranhas, that is. |
The idea that feeder fish hold no nutritional value is asinine!I have raised many obligate piscivores on nothing but guppies,then Fatheads(aka Rosy Reds)and then goldfish.Feeding freshwater feeders to SW fish is a bad idea as the fatty acid profiles are very different(SW fish are skewed toward Omega-3's,FW towards Omega-6's),and feeding live fish to freshwater fish that eat other things is a good way to introduce diseases,but as you yourself said,meat is meat!I have a real soft spot for Acestorynchus tetras aka Freshwater Barracuda and they generally eat nothing but live fish.An interesting sidenote is that I have never had a problem with disease keeping these guys.After all predators generally eat the weak and the sick.
John