There are literally thousands of species of fish. Many species will mix with others that require similar water parameters but some are predators and/or territorial and must be kept alone. My advice is to go and see a few aquaria and observe which species are kept together. If your local pet shop has a display tank or two that would be a good place to start. Please remember that the most common cause of fish death in home aquaria is bad water. This is usually caused by either overcrowding or poor filtration or lack of water changes. The rules to observe are .:- 1 inch of fish needs at least 1 gallon of water :- Every tank needs a permanently running cycled filter. :- Every tank needs at least 50% of its water changed every week. If you follow the above rules your fish should do OK. If you miss out on any of the above then I can guarantee that your fish will be constantly getting sick and will live shortened lifespans.
Any fish that does not have long fins. p.s. i have a betta named Frodo lol
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
In oder to really answer that, I'd need more info? What kind of fish? What kind of substrate (gravel)?
probably not.
No. Bettas are freshwater fish. Seahorses are saltwater.
no!! they can hurt ur fish!
It is not harmful. But if you want to clean up the algae in the tank you want to get a pleco. They are very peaceful fish and will not harm angelfish. I have a pleco and three angelfish in my 35 gallon tank right now and they get along great!
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No, clown fish are marine fish and tetra and guppies are freshwater fish.
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.
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.