So I'm about to get my heater for my 40g and petsolutions.com is having a huge sale on em but my question is should I get a 150w heater or should I get the 200w? Its only acouple bucks more but here in vegas my room temp very seldom gets colder than 70 in my apt but getting the 200 will let me use it in a bigger tank later on, so maybe alittle input will help me decide, thanks

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10g- 2 hi-fin fm platys, 3 koi & red wag sword fry
40g Breeder- 6 danios, 4 female swords, 1 male swords
"I was born with nothin and I still got most of it left."- Seasick Steve

Go with the bigger if you think you may get a bigger tank at some point. It wont hurt anything.

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"Being ignorant is not so much a Shame, as being unwilling to learn".-- Benjamin Franklin

I agree, go with the bigger...the bigger it is, the more stable the tank temp will be...

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20 gallon long:Amazon Swords, Ruffle Swords, Red Flame Swords, Fanwort, Wisteria,8 Lemon tetras,
6 otos, 11 Amano shrimp, 3 mystery snails, 3 Bolivian Rams, 3 black skirt tetra and 2-3 lemon tetra fry
10 gallon: 30 lemon tetra fry, give or take...1 gallon Anubias, Fish: 1 betta

its a done deal lol, a new 200w pro heater along with a few odds and ends are now on the way to my home

I must say ifanyone need a heater definetly check petsolutions out, i highly doubt you'll find a new 250w aqueon pro heater for less than 30 bucks anywhere else.

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10g- 2 hi-fin fm platys, 3 koi & red wag sword fry
40g Breeder- 6 danios, 4 female swords, 1 male swords
"I was born with nothin and I still got most of it left."- Seasick Steve

Actually, i got mine from petco.com, they are having a 20% off ground hog day sale today, so I got mine for $27.99. (Mine was 200W just saw yours was 250) I also doubled the wattage I needed. I have a 29 Gallon, went for the 200w because we keep it chilly, thermostat set for 55 at night in the winter.