no!! they can hurt ur fish!
A saltwater fish tank can be half freshwater and all of the saltwater fish will live but not for very long.
no because if its a freshwater tank the rain has salt in it
probably not.
No. Bettas are freshwater fish. Seahorses are saltwater.
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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.
No, clown fish are marine fish and tetra and guppies are freshwater fish.
If you have seen a miniature freshwater dolphin fish, you likely saw an elephant nose fish. This is an African freshwater elephant fish that is popular in many aquariums.
you buy a proper fish tank ya fool, that's too tiny.
Yes, most freshwater fish need a air stone in their tank. And even if they don't need one it will improve the fishes health.
Plecos love to eat fresh water fungi. I had a lot of fungi in my freshwater fish tank and within 5 months all on the fungi was gone when i got a pleco
Yes snails can live in a fish tank, and they can breed.