Ammonia or PH?

[baum89]

which test would be more important in a 5 gallon tank?
im between ammonia and ph, my nitrite and nitrate seem to always be fine...
the reason i want to know is im thinking of buying a liquid test kit, but they are pricey and i only want to buy one

[mdcorcoran]

if nitrite is fine, then ammonia is fine.
pH is very important, get that one.

[dobejazz]

Originally Posted by mdcorcoran

if nitrite is fine, then ammonia is fine.
pH is very important, get that one.

[kyrie_eleison]

definitely test for pH more often. especially if you're like me; i tend to premix my water adding a pH buffer. then testing to see if it's acceptable for use.