I hate writing these posts,
I was just in Aquarium Co-op today and bought a CO2 kit, one honey gourami (to go with my other three), a dwarf chain loach (to go with my other three), and two amano shrimp. I did my normal routine of acclimating them to my tank and installed the CO2. Then about 2.5 hrs later, I found the new gourami dead along with my other, smaller gourami dead. I have no clue how this could happen. Water levels normal. Did a small water change yesterday but that's it. I would have thought maybe the new gourami was stressed but I don't get how my other one died as well. Would really appreciate any help here.
This is going to sound crazy but it feels like whenever I mess with my tank (water change, new fish...), something dies.