u/Adrestia11

I am still pretty new to otos and I am determined to become a good oto mom. Bellow I am including a video. Are they playing with the bubbler???? Also is this happy oto movements or framtic oto movements. I finally have 6 (supposedly 7) who are acually able and willing to eat so I want to make sure that this is what their behavior should look like not just some other stressor I am missing. Also they are in a 10 gallon but I have 2 other tanks (ones a 10, and the other is a shrimp 2.5 gallon) that create plenty of fresh brown algea that I give them, and I also supplement their diet with wafers, nori, and blanched zucchini and cucumber. Also any idea why I will almost always have one to three otos who seem to not want to be in the main group or are not allowed to join the little school?