water from a faucet WITH A FEW DROPS OF WATER CONDITIONER
soft water at 78-84 degrees
If you wish to have healthy Bettas then they need clean tropical water, a pH of about 6.8 a temperature about 78F and a minimum of 3 gallons of water to live in. They also need at least 50% of their water changed weekly.
Male bettas should be kept alone. Female bettas can sometimes be kept with other fish, but in a large community tank. Bettas need their space!
Bettas shouldn't be fed plants, they are carnivorous fish and need lots of protein.
Daphnia, mosquito larvae, and brine shrimp are good choices for bettas.
Bettas and other Anabantids like old water. I would be replacing only around half a gallon (4 pints) of its water weekly.
To safely introduce snails to a tank with bettas, acclimate the snails to the tank water temperature, ensure the snails are healthy, and monitor the bettas' behavior towards the snails to prevent aggression.
They will be fine on community flakes or pellets.
The recommended size tank for Bettas to breed in is 24"x12"x12". I guess if you went down to 18"x10"x10" you may get away with it but you will need to keep a very close check on the water quality and immediately they stop the spawning process you will need to remove the female otherwise she will be killed.
Bettas do not necessarily need an air pump, as they have a labyrinth organ that allows them to breathe air at the water's surface. However, an air pump can help increase oxygen levels in the water and provide additional surface agitation, which can benefit the overall health of the betta and other aquarium inhabitants.
Chlorine will kill just about anything so yes it has to be removed. Because chlorine is a gas it will evaporate off from tap water given time, so provided the water is allowed to stand overnight there is no need to use chemicals to remove it.
No. Bettas need an aquarium (All water). Toads need a vivarium (water and land). Also toads are eaters of fish so I doubt your Betta would last very long