Each addition depends on the environment that is already in-place.
a fish
Gold is an inert metal (not dangerous to fish). You can put it into a fish tank if you choose too.
Freshwater setup: MUST HAVE: Tank, filter, filter pads/media, heater, light, fish, water, electricity, fish food, place to put tank NICE TO HAVE: Substrate, decorations, tank lid
No.
You should not put your Betta fish in the same tank in the first place, most likely the male will kill your other fish. by res do you mean red eared slider?
Umm you could buy a fish tank and put it in your room just make a fish then buy a fish it will get in side the fish tank in your you don't have to do nothing just buy a fish and a fish tank and it is put in your room
no
no
you can put a betta in a 5 gallon tank
TheType of fish that you put in the tank and what they need to survive
you can put fish in the tank but you can also put frogs in it too!