...the pH level can be solved by adding salts excluding Iodized salts ( roughly 1 tea spoon per gallon) to increase alkalinity because axolotls strive in 7.4-7.6 pH and unfortunately...
It is true that the general hardness does typically increase with an increase in pH but it would not be advisable to add salts to raise the pH. Salt(s) should never be added to the tank- only to the bucket(s) of water, given that the water is soft.
Alkalinity is a measure of the acid-neutralising capacity of the water in question. That is, the amount of acid that can be added to water without lowering its pH level. Therefore, if the water can handle a large amount of acid before a notable change in pH; it is said to be higher in alkalinity. Basically, alkalinity is a measure the buffering capacity. However, due to its spelling/name, it is often confused the word 'alkaline', which refers to a solution that is basic- so to speak.
The best way to resolve low pH values is to use shell grit or sea shells. These substances will leak carbonates which in turn, will raise the pH value.
I think Kiowa got the two terms mixed up, which is only natural because I have done the same thing
Jay.