My new betta "bubbles" I got him yesurday and he was so full of life. Now he seems to be going through the sulking stage of things - Poor guy. Though I have noticed he is staying in the same Corner of the tank (Top right) though I have also notice and few bubbles coming from his area... It couldnt be the filter because he only just happened, also the filter current doesnt go that way. Could this be a attempt to a bubble nest ? Also its not fixed to the side of the tank, do bubble nests have to ?
I'm not sure if a bubble nest has to stick to the side of the tank but all the ones i have seen do. I think Radish may be attempting one too!! Has Bubbles perked up any?

