50W heater. I recommend an adjustable one like a Topfin or a Stealth, etc. You'll spend a little more but it's worth it in the long run.
Sponge filters are the best because you can lower the flow, but almost any of your hang on the back or in tank filters will work. Just make sure to get one that is for 10 gallon tanks.
*Be smart.. Do your research!!*