I have a 29 gallon tank with 8 african dwarf frogs and 2 otos. They have been to gether for close to a year without any issues, until today. My male african dwarf frog has the tip of the otos head in his mouth and will not let go. The oto is still alive and freaking out but the frog will not let go eventhough it is too big for his mouth. He has had it in his mouth for the last 3 hours(that is when I noticed it) I tried holding the frog and gently pulling on the oto but the frog just closes its mouth harder. I tried tempting the frog with frozen bloodworms and mysis shrimp hoping it would let go but it did not. Does anyone have any ideas what I can do...... It is horrible to watch as the poor oto only has its nose stuck in the mouth so it can still breath but is really stressed. any advice would be appreciated.