dont go with what people just tell you! Do what makes sense, what research makes sense, and what is the logical thing to do!
First, What exactly are your levels?!?! what does "looking good" mean?
If you dont know, than THAT is your answer! You NEED TO knwo your levels for now and future referances! EVERYTING you will do, whatever will happen to your tank, you NEED TO KNOW your levels!
So, #1: go get the test kit for Ammonia, Nitraite, Nitrate, pH... later on you will need phos, Calcium, and dKH
Please read up what cycling means and what it does!
Ammonia changes into Nitrites and than to Nitrates
When u dose Ammonia (eg ur dead shrimp) you dont want to do a water change... in general you do not do water changes during ur cycle (later on it is a MUST), unless (!!!) you cant read ur levels anymore... and you dont do big changes, just 10-20%
considering the buffer: you need to raise your pH, BUT buffers increase ur dKH
too... you need to know ur alkalinity before you just add random chemicals to your tank
Cycling lowers pH because Hydrogen ions get released into the water from the Ammonia (NH3
changes to NO3
). The higher the H+ the lower the pH... thats what pH meassures: Hydrogen
Make sure you have good water movement on the sureface of your tank, that helps with the gas exchange to stabilize your pH
Also, dont check pH in the AM, check it in the late PM.
Do you have ur lights on?
You need a test kit period