testing kit

After running back and forth to get my water tested at the LFS, I figured it would probably be more economic (and easier overall) to just buy my own test kits. However, I'm not entirely sure on whether I should invest in liquid or strip test kits. So TFF, I got to ask: which one do you prefer...

What is the water volume of the tank? 28L not enough, I’m aware, and shopping for a second hand 100-200L tank. How long has the tank been running? Mid Oct /23 Does it have a filter? Yes HOB Does it have a heater? Yes, 25w What is the water temperature? 25-27*c typically What is the entire...

Hello there!!!   Due to thievery of buckets and general busyness/laziness with perfectly maintained tanks... my tanks are no longer perfectly maintained and my water is crazy.  Now I have some questions.  For the stats, after the LFS telling me I had issues, I bought a test kit yesterday to test...