Sufficient fan for a 4ft tank

[Khufu]

Hi guys, just would like to know what sort of fan is sufficient for a 4ft x 1.5ft x 1.25ft tank. Or will a tank of this size require a chiller? Main intention is not really for plants, more for my corydoras catfish which require a cooler temperature. Although I do intend to put in some sort of simple moss inside the tank.

TIA

i'm currently using 1 ANS-brand fan for my tank. same dimensions as yours. quite a heavy duty fan and blows reasonably strong, like one of those pc cooling fans.. on average, temp hovers ard 27 to 28 deg cel. on rainy days, can go down to 26 deg cel, due to cooler surroundings, i guess.. what's ur target temp? i dont think cories need really cool water, rite? my cories are doing great on the temps i mentioned above...

You can try to go down to Sim Lim Square to look for those bigger fans 12cm x 12cm type. Look under CFM, that's airflow meaning you get more air... rpm is crap, cos you just get speed and noise.