i think you would need a medium tank for your fish.
because when you go to the coast you need a tank for the salt water fish
No, you need a special salt for a saltwater tank.
A saltwater fish tank can be half freshwater and all of the saltwater fish will live but not for very long.
uhhh.. yeh buddy
yes
If the temperature is around 20 degrees (Celcius) probably not. But for a five GALLON fish tank, probably.
No. Bettas are freshwater fish. Seahorses are saltwater.
It forms a large part of the skeleton of the corals. Fish and other animals in the tank also need it.
if you have live rock or certain types of coral in your tank the light that is connected to your tank will creat oxygen through photosynthsis with the live rock and coral.
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).
A heater can raise the temperature of a fish tank if needed