ph high

Hi, I am new to the hobby, and was testing my water but I am unsure how to read the results. Can you help me? I have 20 Gallon fishtank, 3 guppies and 2 plants inside, side filter and a heater, (however my water is on 80F due to warm weather and the heater never goes on). The fish tank is 2...

So, 2 weeks ago I tried to get 3 ottos to keep company to the lonely one I keep (had 2, but one died about a month in and this one has been lonely ever since). All 3 died in days in the quarantine tank. I went back to the shop with water and pH test showed off the chart blue (api kit, same one...

i made a post last night about how my betta is breathing heavily and pacing after doing a water change. today he isn’t pacing as much but still seems to be breathing heavy. i just tested the water and the ph looks like it’s around 8 - 8.2. yikes! is this what’s causing his behavior? how should i...