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Certain Freshwater Fish can survive saltwater conditions; examples are black mollies, mono's and scats. All of these fish aren't truly freshwater or saltwater, they are Brackish. Brackish is between freshwater and saltwater, and so these fish are highly adaptable.
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∙ 13y ago
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How much freshwater can a saltwater fish take?
A saltwater fish tank can be half freshwater and all of the saltwater fish will live but not for very long.
Can you put a betta fish in a tank with a seahorse?
No. Bettas are freshwater fish. Seahorses are saltwater.
Why do you have to put salt in the fish tank water?
Saltwater salt, makes it saltwater, for the saltwater fish to survive. Freshwater salt is added to help gill function, reduce stress, combat some health issues and improve water conditions.
Can you keep a regal tang in a tropical tank?
No. Not in the traditional definition of the tropical tank. A tropical tank is a freshwater aquarium. Regal Tangs are saltwater fish and go in a saltwater tank (marine aquarium).
Can Granite rock be used in fish tanks?
In freshwater yes. I would not recommend it in saltwater. If it is not in the ocean naturally I would not put it in a saltwater tank. There isn't too much you can't put in freshwater.
Why would a freshwater aquarium be dangerous for saltwater fish?
The density and pressure of saltwater is different from freshwater as is much of the bacterias and parasites. The acidity of the water is also of concern as the lower the PH the higher the acidity of the water. Saltwater being of a higher PH would not handle the lower PH of freshwater very well. Also if moving a freshwater fish to saltwater that fish will lose a great amount of water in it's body causing death and if the saltwater fish is moved to freshwater it will gain great amounts of water causing death.
Can a freshwater tank become a salt water tank?
Yes but you need to buy a saltwater filter to replace the freshwater one.
Can glo fish and lobsters cohabitate in the same fish tank?
No. Glo fish are freshwater organisms and lobsters are saltwater organisms. And if they could live in the same water, one eats the other.
Can a Seahorse and glofish be in the same tank?
No, A Seahorse can only live in saltwater and a glofish can only live in freshwater. Seahorses do not do well with other fish anyways.
Can the sand from a previous saltwater aquarium be used for a freshwater tank?
No, i wouldn't use it in the freshwater tank. It's been sitting in salt for quite a while, and chances are your salt water sand is comprised of bits of shells. They will throw off the chemistry of your tank and lead to fish loss.
Do you have to have a saltwater filter for a saltwater fish tank?
uhhh.. yeh buddy
Can you make a freshwater tanks into a saltwater tank?
yes just add salt!
