Eheim Heater - Same price, 250w or 300w?
So I'm hardware shopping right now for the 72 gallon bow front tank I'll be starting up in a year or two. The previous owner I bought it from included a hydor submersible heater, although I can't remember if it's 200w or 250w and I haven't tested it either... The tank is at my grandma's house for storage purposes, so I can't quite check on it right now.
I'm used to houses being on the colder side (my parents keep the house a little colder and tell everyone to put on sweaters), so I've been used to buying heaters with a little more power to account for the ambient temperature difference. That being said, the 250w and 300w Eheim jager heaters are both $26 and some change, which is a great steal!!
But, I'm not sure which size I should get. I understand having two heaters is better in case one fails, etc. so I'm working on the assumption that the hydor is functional, but I also don't want to accidentally fry my tank. What do you guys think??