This past Monday I moved my betta from a 5 gallon tank to a 10 gallon. One think I was hoping for was to have less surface agitation for his bubble nests in the 10. He was constantly blowing bubbles in the 5 and overnight they'd always get blown around. The same thing is happening again in the 10. It must be frustrating for him. Is there some sort of device to create an area for a nest to be held in? Any solution at all to this dilemma?