I'm a new Betta owner and am glad that I checked out the internet for info. I put my fish, Lemon Drop, in the 5 gallon tank I moved my goldfish from. I thought he would like it and he does. Now I know it is good for him too. I didn't know about needing a heater but will get one. He likes his plastic palm decoration, he lays on the leaves. However, I will get him a cave and silk decoration to be safe.
Lemon Drop will be happier and healthier little guy thanks to this site. So much I learned I'll put to use. Algae big problem, I changed the water and there was a huge amount of green stuff I figured is algae. It was hiding under the rocks so I did not see it. An alarming amount. Not in direct sunlight so maybe I'm leaving the light on too much? Not much on the walls though...I've never seen anything like that algae...strands of it, lots and lots of it.