I was doing a water change on my tank last night and have to move one of my decorations. This morning I woke up and can only see one of my Otos(I have 2 so far) well I looked all over for him and nothing. Then I it’s me... the plant decoration I moved well there he was right under it... he is still alive but barely moving. He has tried swimming but only for a couple of inches. Any suggestions on what I should do?