Thank you for the welcome. 
Hi there, Rackin Rocky. :-DBbonta, he's a cutie! Does he have a filter and heater?
Thank you for the advice. I do use a water conditioner, NovAqua Plus. The heater works really well. He's at 82 F. He seems pretty comfortable. He's also getting a Moss ball (massimo?) Thursday via UPS.Bettas like it warm--try it keep it around 80F. It's good that you change the water every other day, not having a filter can allow ammonia to build up.Use a water conditioner, like Prime too. (I'm sure you already know this) If you're getting the 10 gallon soon, he'll be fine. Otherwise I'd be more comfortable getting him a small filter. Although bettas can do without them, I prefer to use them. The smallest Whisper filter works great in my fiddler crab 10 gallon tank that I have 3 gallons of water in (rest of it is land).
This is the one I picked out last night. It has good reviews.Sounds like he's got a great home with you. Marimo moss ball is what you are referring to. I've had a few over the years. After a while they fall apart, but they seem to last at least a year. The Whisper filter has suction cups, and that's how it hangs. I don't know if it would "stick" though on a rounded tank. That's the only small filter I've used. Most would be too big for three gallons. I've researched it online, and that's how I ended up with the Whisper. They are only about 6" high, including the intake, so pretty small.
I sure will, rackin rocky.Now that I think of it, I HAVE heard of that one. It seems that I read a LOT of reviews, and that the Whisper, in the end, won me over. I hope this one works for you--good job! When you get better pics of your new guy, post them!
Well, hello there, Calle! It's a pleasure to meet you. What kind of Betta do you have? :-DHi Bev,
I don't know what a giant or king betta is but I'm new too and was scared to post anything in the wrong place. Lol
Anyway, hi.