He's lovely. I like the name Magenta as well.
The stickies on this forum are a good place to start, but here are my basic tips:
-Tank of at least 2.5 gallons.
-Small unfiltered tanks will need two 50% and one 100% change a week (use water conditioner)
-Heater! Bettas are tropical and prefer temps of 76-82*F
-Check all plants for rough edges. If a pantyhose snags, it will tear your bettas fins. I like live plants, but most silk ones are okay. Definitely check plastic plants, as they are notorious for tearing fins.
-Feed a varied diet. Check pellets for meat based ingredients. I feed Aqueon and Omega one brand pellets.
Hope this helps!