Good point. Unless you really need to know there's no point in testing for water parameters.
I don't do water parameter readings unless:
a) Some of my water source parameters are unpredictable (my case: my source water mixes the City water and a deep well water: both are nitrates free but with slight variations in pH 7.6-7.8 and significant variations in
GH and KH: 7-19 dGH; 5-13dKH). For this readings I let water sit overnight in a shallow plate and measure next morning.
b) I am tampering with water parameters (my case: I have 9 tanks running, seven of them already stable at 6.8pH -mixture of R/O processed drinking water+peat+Indian Almond Tree Leaves+mineral traces as needed -one of those with CO2; one at 7.2 -peat+Indian Almond Tree Leaves; one at 7.2-7.4: CO2 only).
And I won't go into temperature differences (e.g.
chiller or heater or nothing), Dissolved Oxygen (sensitive fish as some Rainbowfish species), REDOX potential (also named ORP, health related),or Dissolved CO2 (
DIY-drop checker).
c) I need to rule out my cycle was disturbed (my case: after using medication or temporarerly re-stocking and pushing limits in
bio-load)
d) Another reason: I enjoy doing this, otherwise I wouldn't test as often as I do.
Pepe
Santo Domingo
PS I use test strips as screening. They are quite good in detection of nitrite and nitrates.