Hello! So as of Tuesday night I completely changed my betas 3 gallon tank of water. I was just reading up on this and I guess you shouldnt be doing that. Besides the fact.. so I changed the water and I had him sit in his bag in the top before adding him in and giving him time to adjust to the temperature and also used beta water conditioner by top fin. As of Wednesday, I added some new plants and moss and added new bamboo to the filter up on the top.I also added an wall bubbler to the back of the tank but cut off the air like a little so it’s not so splashy. But as of last night (Thursday) I noticed he was staying at the bottom. And I thought he could’ve been sleeping so I thought I’d wait to see how it goes tomorrow and today he hasn’t really gone up the the surface (where he usually stays). He looks as though his mouth is opening wide and gasping. Same with his gills and he’s laying on his side. He also returns to this little hiding space when I put my finger in front of him, he swims in a little circle and goes right back down to the same place. Is it too late to do anything? Is there anything I can do? Do I need to add more water conditioner? Thank you!