Hi everyone! I come here with an odd question today. Normally, when I do my water changes, I just scoop my bettas into a soap-free tupperware bowl and they're cool with it. Gradually add in new water, float them, they're good to go. Well, I decided that putting my rather large DT male Akani in a small bowl was cruel. So I went to Wal-Mart and bought a $5 cylindrical glass-type thing so that he could swim around while I was doing his rather extensive water change.
I added some water to the container, then scooped him up in a tupperware, and carefully attempted to dump him into the glass. For a few minutes he seemed stressed. Winded almost, his gills were moving rather fast. After a few minutes he was OK. Insert water change. I remove some of the water from his vase and begin adding in new water, 50% 50% ratio since it's water he's had before. The poor fish begins swirling around the vase trying to get his bearing with the flowing water. I felt like I was making the poor boy dizzy.
I know that here in a bit I have to add him into the tank and I'm afraid that even with a 75% new 25% old in his vase before I net him, he'll have a heart-attack or something while in the net when I go to add him back to his 5g tank.
So, can you stress your betta so much from a water change that he can die? Water conditions are favorable and should not factor in any stress. Thanks!