Help
I got a female Betta on the 9th May after properly cycling my tank for about a month and she was really active and colourful and eating well by the second day, on the 17th I did a 45ish% water change (including a gravel vac) I used a wide paint brush to brush the plants and other surfaces of excess debris beforehand (I soaked the paintbrush in boiling water for 20 minutes first) I used tap conditioner for the new water and tested the levels an hour later and everything was fine but the next day she wouldn’t eat and was lying in the floaters, I just thought she was tired and tried again the next day but it was the same thing, she was lying in different spots each time I checked on her, at the surface and further down in the tank so it wasn’t a mobility issue but this morning I went she check on her and she had passed away, I tested the levels again and they are fine but I’m not sure what happened?
Notes:
- 40 litre tank
- heater at 28 degrees Celsius
- Only plants and driftwood for decor (edit: Betta log as well)
- Fed fluval bug bites tropical granules
- Some kind of snails in the tank I assume hitchhiked on the plants or in the bag when I purchased her