Long story short, my brother's ex-girlfriend left her betta with my brother and it wasn't getting taken care of, so I took it - with permission, of course. So, ever having nor even wanting a fish before, here I am with a questionably healthy betta, and I'm learning as I go. My problem is that the internet it FULL of conflicting information about how to care for this type of fish.
So far, he's already had a round of anti-biotics for what I suspect was the beginning of fin rot from being in such disgusting water for so long. Then I bought him a cave for his tank, since the internet says they like that sort of thing. He loves it. Happy fish.
Then I bought a thermometer and learned the tank is usually 70 degrees instead of the recommended 72-82. So THEN I bought a heater that was factory set to 78, but it heats my tank to 84? So I check online. Some say 84 is too hot, some say it's fine, and I have ZERO experience with fish, so I have no clue!
Does anyone here have experience with betta fish? I don't want him in a smaller tank, so the old room-temperature thing isn't going to apply. I eventually want him in a 10 gallon tank; right now he's in a 2.5 (I think. It's the tank I found him in, so I have no way of knowing for sure.) Is 84 too hot? What kind of thermometer is best? Maybe it's reading the temps wrong... I have a glass one with the red stuff in it. Maybe I need a digital?