No.
No you can not because tap water has chorine that makes fish die
Yes because fish water has nutrients that tap water doesn't have that acts like a fertilizer.
ok
Yes it is okay for you to drink tap water
Depends what kind of fish. If it's a freshwater fish, tap water from a faucet that has a water filter in it is good. If it's a saltwater fish, buy sea salt and mix in the right proportions to filtered tap water.
yep
you can use both but tap water is a bit better for them
fish*
As long as your tap water is safe for you to drink, then yes. You should consider buying the water conditioner in liquid form so that you can use exact amounts rather than being limited to a specific dosage due to the tablets
Tap water is the best water for betta fish! There is no need to go out and buy expensive betta fish water...it's no different then tap! If you want to be sure that the tap water is safe for your betta, put in some sort of conditioner for the water.
Some people do not believe it but the best water to use in your betta fish tank is tap water. Bottled and distilled water has been "purified" and does not have the minerals that your Betta fish needs. If your tap water is so bad that you do not even drink it, than use spring water.
You shouldn't tap on a fish tank because it can stress out the fish, disrupt their environment, and potentially harm them. The vibrations from tapping can also affect the water quality and overall health of the fish.