Well I went on amazon.com and found a few hydor mini's that seem promising. they also have the zoomed which does have better reviews than petsmart had for it.
I'll still probably go for the hydor mini. Just not sure if I want the 7.5w(2-5gal) or the 15w(5-10gal).
I would guess the 15w even though I have a 3gal considering every other heater I've seen for small aquariums was like 25w to 50w.
Anyone use these before and have any info on them?
I'll post a link to the 7.5w since that page has more pics and reviews on it.
Amazon.com: Hydor MINI HEATER Aquarium Heater 7.5 Watts for Tanks 2-5 gal: Pet Supplies