Feeding fresh with fresh

[pytonson]

I have heard that you should not feed your fresh water fishes with caugth fresh water fish. And the same with salt. But it should be okey to mix. Feed your fresh water fishes with caugth salt water fish. And feed salt with fresh. Because of the risk to get parasites. Have anyone heard something else?

[sohfatfish]

I doubt freshwater fish would eat marine fish as they would never come across marine fishes naturally in the wild unless you are refering to brackish water fishes;vice versa for the marine fishes. To remove parasites most of us quarantine the feeder fishes in an aquarium with about 0.5% salt concentration for at least 2 weeks to rid of most parasites.

[thefishofdoom]

i feed silver sides to my fish and they are salt

[joeytoe]

Ive fed my marble cat an clown knife Tilapia chunks an the cat has eaten Smelt.

[DeLgAdO]

feeding freshwater fish to saltwater fish is supposedly not a good idea

even though freshwater fish live in freshwater ( obviously) they have a higher salt content in their tissues due to osmosis.

saltwater fish are in constant battle with their salty environment, trying to keep the level of salts in their bodies low so they dont dehydrate

feeding freshwater fish to saltwater fish will put stress on their bodies as they have to work alot harder to purge that extra salt from the fish they just ate.

just a theory, no one has yet proven it to be a fact

[ChickenTeeth]

feeding freshwater fish to saltwater fish is supposedly not a good idea

even though freshwater fish live in freshwater ( obviously) they have a higher salt content in their tissues due to osmosis.

saltwater fish are in constant battle with their salty environment, trying to keep the level of salts in their bodies low so they dont dehydrate

feeding freshwater fish to saltwater fish will put stress on their bodies as they have to work alot harder to purge that extra salt from the fish they just ate.

just a theory, no one has yet proven it to be a fact
Nice try DeLgAdo!!! Wid dat line of reasoning, U must'av been a philospohy major!!! I don't tink fresh fish eating salt fish is as simple as too much salt. I tink it has to do wid the salt fish havin a different lipid content or someting like dat...

[sandtiger]

Nice try DeLgAdo!!! Wid dat line of reasoning, U must'av been a philospohy major!!! I don't tink fresh fish eating salt fish is as simple as too much salt. I tink it has to do wid the salt fish havin a different lipid content or someting like dat...

How is that related to philosophy...its simple science.

[sandtiger]

I doubt freshwater fish would eat marine fish as they would never come across marine fishes naturally in the wild unless you are refering to brackish water fishes;vice versa for the marine fishes. To remove parasites most of us quarantine the feeder fishes in an aquarium with about 0.5% salt concentration for at least 2 weeks to rid of most parasites.

I don't agree. Many of the predator fish we keep eat goldfish, convicts, bettas or whatever else we give them even though they have never seen them bofore and they come from different parts of the world.