I just purchased a 10 gallon starter kit for my baby betta Triton. I believe the filter is too strong for him because he is staying near the bottom while the filter is on. I turned the filter off and he is swimming all around. Now he is flaring at the filter and like "slapping" himself at the glass.
1) How do i make the filter "weaker" so my betta can still swim in his now very spacious home
2) How do i get him to stop flaring? Is that a normal reaction since he was previously in a tank that didn't have a filter in it?
ps] he flared at the thermometer as well...