... welp today I got a whole new tank and setup for a betta. I can’t control myself. Anywho, it’s a red and blue delta tail male. So I used fish tank water from a healthy tank and put it in the new one. I know it doesn’t have a lot of bacteria nearly any but I used it anyway. I don’t have a filter, but I am planning on planting the tank like a forest with a river. Swords Anubis’s java fern, jungle Val, and carpet the river part with dwarf baby tears. I am ordering a plant light soon to help them grow. So I added him in today, and he seemed a little roughed up from being at Petco. So he wasn’t that active, so I kept the light off. Every hour or so I turned on the light to check on him but every time he turns the light on he seems to stop moving. So I keep the light on only for about 10 seconds. I hadn’t checked on him in about 3 hours so when I saw him he was swimming around and exploring. Once I turned the light on he was still swimming but he started yawning? He flared up his fins and almost pushed the underside of his hills out. He did it multiple times so I quickly turned the light off again. I'm new to bettas also advice is appreciated. What was he doing? Was he scared or intimidated? I also have a 50 watt heater set a 78 degrees and a bubbler with an air control valve and a small bubbler.